H Hartley Sweeten [Sat, 20 Apr 2013 00:14:30 +0000 (17:14 -0700)]
staging: comedi: pcl816: remove unused RTC dma support
All the RTC dma support code in this driver is #ifdef'ed out.
Remove the unused code to assist in cleaning up this driver.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Sat, 20 Apr 2013 00:14:06 +0000 (17:14 -0700)]
staging: comedi: pcl818: remove unused RTC dma support
All the RTC dma support code in this driver is #ifdef'ed out.
Remove the unused code to assist in cleaning up this driver.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Thu, 18 Apr 2013 21:34:37 +0000 (14:34 -0700)]
staging: comedi: drivers: free_irq() in comedi_legacy_detach()
All the legacy comedi drivers now call comedi_legacy_detach()
either directly or as part of their (*detach). Move the free_irq()
into comedi_legacy_detach() so that the drivers don't have to
deal with it.
For drivers that then only call comedi_legacy_detach() in their
private (*detach), remove the private function and use the helper
directly for the (*detach).
The amplc_pc236 and ni_labpc drivers are hybrid legacy/PCI drivers.
In the detach of a PCI board free_irq() still needs to be handled
by the driver.
The pcl724 and pcl726 drivers currently have the free_irq() #ifdef'ed
out. The comedi_legacy_detach() function sanity checks that the irq
has been requested before freeing it so they are safe to convert.
For aesthetic reasons, move the #ifdef unused chunk in the pcl816
driver up to the previous #ifdef unused block.
The pcmio and pcmuio drivers request multiple irqs and handle the
freeing of them. Remove the 'dev->irq = irq[0]' in those drivers
so that comedi_legacy_detach() does not attempt to free the irq.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Thu, 18 Apr 2013 21:34:19 +0000 (14:34 -0700)]
staging: comedi: drivers: use comedi_legacy_detach()
Use comedi_legacy_detach() to release the I/O region requested
by these drivers.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Thu, 18 Apr 2013 21:34:00 +0000 (14:34 -0700)]
staging: comedi: skel: use comedi_legacy_detach()
Update the skeleton driver to use the new comedi_legacy_detach()
helper in the (*detach) to release the I/O region. Also, update
the comment about it.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Thu, 18 Apr 2013 21:33:40 +0000 (14:33 -0700)]
staging: comedi: amplc_dio200: use comedi_legacy_detach()
The I/O region used by this driver is always requested using
comedi_request_region(). The devpriv->io union is only used by
the common code shared by the legacy and PCI drivers.
Use the new comedi_legacy_detach() helper in the (*detach) to
release the I/O region requested by this driver. That function
will handle the proper sanity checking before releasing the
resource.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Thu, 18 Apr 2013 21:33:22 +0000 (14:33 -0700)]
staging: comedi: drivers: use comedi_legacy_detach() in simple drivers
Use the new comedi_legacy_detach() helper in the (*detach) to release
the I/O region requested by these drivers.
Since the (*detach) for these drivers only releases the region, remove
the private (*detach) functions and use comedi_legacy_detach() directly
for the (*detach).
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Thu, 18 Apr 2013 21:33:04 +0000 (14:33 -0700)]
staging: comedi: das1800: use comedi_legacy_detach()
Use the new comedi_legacy_detach() helper in the (*detach) to release
the first I/O region requested by this driver.
An additional I/O region is requested for some of the boards this driver
supports. The iobase for that region is stored in the private data so
that the (*detach) knows it needs to be released. Remove the extra
cleanup in the (*attach) that releases the first region.
For aesthetics, move the release of the additional region in the
(*detach) so it follows the (*attach) order.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Thu, 18 Apr 2013 21:32:48 +0000 (14:32 -0700)]
staging: comedi: das16m1: check for subdev_8255_init() failure
Make sure to check if subdev_8255_init() fails and propogate the
error code.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Thu, 18 Apr 2013 21:32:28 +0000 (14:32 -0700)]
staging: comedi: das16m1: use comedi_legacy_detach()
Use the new comedi_legacy_detach() helper in the (*detach) to release
the first I/O region requested by this driver.
An additional I/O region is requested by this driver for the 8255
device. Save the iobase for that region in the private data so that
the (*detach) knows it needs to be released.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Thu, 18 Apr 2013 21:32:12 +0000 (14:32 -0700)]
staging: comedi: das16: use comedi_legacy_detach()
Use the new comedi_legacy_detach() helper in the (*detach) to release
the first I/O region requested by this driver.
An additional I/O region is requested for some of the boards this driver
supports. Save the iobase for that region in the private data so that
the (*detach) knows it needs to be released.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Thu, 18 Apr 2013 21:31:52 +0000 (14:31 -0700)]
staging: comedi: pcl812: use comedi_legacy_detach()
This driver does not follow the standard (*attach) (*detach) flow of
the other drivers in comedi. Comedi drivers do not 'cleanup' any of
the allocations made during the (*attach) if failures are encountered.
If the (*attach) fails, the comedi core will call the (*detach) to
handle any clenaup.
In this driver, the function free_resources() handles all the cleanup.
Remove the calls to this function during the (*attach). Since the
(*detach) is then the only caller, remove the function and just put
all the cleanup in the (*detach) function.
Use the new comedi_legacy_detach() helper in the (*detach) to release
the I/O region.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Thu, 18 Apr 2013 21:31:29 +0000 (14:31 -0700)]
staging: comedi: drivers: introduce comedi_legacy_detach()
This function is intended to be used by the comedi legacy (ISA) drivers
either directly as the (*detach) function or as a helper in the drivers
private (*detach) function.
Modify the comedi_request_region() helper so that it stores the 'len' of
the region as well as the 'start' after the region has been successfuly
allocated by request_region() in __comedi_request_region(). This region
will then be automatically released detach of the driver by the
comedi_legacy_detach() helper.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andy Shevchenko [Fri, 19 Apr 2013 11:35:45 +0000 (14:35 +0300)]
staging: rts5129: re-use kbasename()
The custom filename function mostly repeats the kernel's kbasename. This patch
simplifies it. The updated filename() will not check for the '\' in the
filenames. It seems redundant in Linux. The __FILE__ macro always defined if we
compile an existing file. Thus, NULL check is not needed there as well.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniel Borkmann [Fri, 19 Apr 2013 12:17:22 +0000 (14:17 +0200)]
staging: net: remove pc300 driver
To quote the TODO from staging/net/:
PC300:
The driver is very broken and cannot work with the current TTY
layer. It is inevitable to convert it to the new TTY API. If no
one steps in to adopt the driver, it will be removed in the 3.7
release.
Nothing has changed since more than _one_ year on this driver, thus
just remove it since we already moved past 3.7. If somebody steps
up and does a whole rework, he/she, of course, is free to resubmit
it. Since this is the only one in the net directory, we can remove
it as well.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Mon, 15 Apr 2013 23:41:57 +0000 (16:41 -0700)]
staging: comedi: introduce, and use, comedi_spriv_free()
The comedi_subdevice 'private' variable is a void * that is available
for the subdevice to use in manner. It's common in comedi drivers for
the driver to allocate memory for a subdevice and store the pointer
to that memory in the 'private' variable. It's then the responsibility
of the driver to free that memory when the device is detached.
Due to how the attach/detach works in comedi, the drivers need to do
some sanity checking before they can free the allocated memory during
the detach.
Introduce a helper function, comedi_spriv_free(), to handle freeing
the private data allocated for a subdevice. This allows moving all the
sanity checks into the helper function and makes it safe to call
with any context. It also allows removing some of the boilerplate
code in the (*detach) functions.
Remove the subdev_8255_cleanup() export in the 8255 subdevice driver
as well as the addi_watchdog_cleanup() export in the addi_watchdog
driver and use the new helper instead.
The amplc_dio200_common driver uses a number of local helper functions
to free the private data for it's subdevices. Remove those as well and
use the new helper.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Mon, 15 Apr 2013 17:19:07 +0000 (10:19 -0700)]
staging: comedi: unionxx5: fix memory leak during subdevice init
In the subdevice init during the attach of this driver, private data
is allocated for each subdevice. The pointer to this data is then
saved in the subdevice 's->private' so it can be free'ed during the
detach.
In __unioxx5_subdev_init() an error path exists that can happen before
the allocated pointer is saved in s->private. Make sure the allocated
memory is free'ed before returning the error.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Fri, 12 Apr 2013 20:41:55 +0000 (13:41 -0700)]
staging: comedi: me_daq: use plx9052.h defines
Use the PLX 9052 register defines in plx9052.h instead of using
magic numbers for the register bits.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Fri, 12 Apr 2013 20:41:17 +0000 (13:41 -0700)]
staging: comedi: plx9052.h: document the CNTRL register
Add defines for the PLX 9052 CNTRL register defines and use them
instead of the magic numbers in the me4000 driver
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Fri, 12 Apr 2013 20:40:45 +0000 (13:40 -0700)]
staging: comedi: me4000: use plx9052.h defines
Use the PLX 9052 register defines in plx9052.h instead of duplicating
the defines locally in this driver.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Fri, 12 Apr 2013 20:40:12 +0000 (13:40 -0700)]
staging: comedi: adl_pci9111: use plx9052.h defines
Use the PLX 9052 register defines in plx9052.h instead of duplicating
the defines locally in this driver.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Fri, 12 Apr 2013 20:39:51 +0000 (13:39 -0700)]
staging: comedi: plx9052: tidy up the register defines
The PLX INTCSR register defines are a bit wordy and many of them
are not used anywhere.
For aesthetic reasons, remove all the *_MASK and *_DISABLED defines
and rename the remaining bit defines so they are not as wordy.
Convert all the bit defines to bit shifts.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Fri, 12 Apr 2013 20:39:17 +0000 (13:39 -0700)]
staging: comedi: cb_pcimdas: remove unused include
This driver does not use anything in the plx9052.h header. Remove
the unnecessary include.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Devendra Naga [Sat, 13 Apr 2013 14:46:51 +0000 (20:16 +0530)]
staging: gdm72xx: cancel work when driver unloads
cancel the work function at driver unload stage and remove
the function from the queue
Cc: Ben Chan <benchan@chromium.org>
Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Mon, 15 Apr 2013 01:44:38 +0000 (18:44 -0700)]
Merge 3.9-rc7 into staging-next
We want these fixes here.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linus Torvalds [Mon, 15 Apr 2013 00:45:16 +0000 (17:45 -0700)]
Linux 3.9-rc7
Linus Torvalds [Sun, 14 Apr 2013 18:13:24 +0000 (11:13 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Misc fixes"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Flush lazy MMU when DEBUG_PAGEALLOC is set
x86/mm/cpa/selftest: Fix false positive in CPA self test
x86/mm/cpa: Convert noop to functional fix
x86, mm: Patch out arch_flush_lazy_mmu_mode() when running on bare metal
x86, mm, paravirt: Fix vmalloc_fault oops during lazy MMU updates
Linus Torvalds [Sun, 14 Apr 2013 18:12:17 +0000 (11:12 -0700)]
Merge branch 'sched-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
"Misc fixlets"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/cputime: Fix accounting on multi-threaded processes
sched/debug: Fix sd->*_idx limit range avoiding overflow
sched_clock: Prevent 64bit inatomicity on 32bit systems
sched: Convert BUG_ON()s in try_to_wake_up_local() to WARN_ON_ONCE()s
Linus Torvalds [Sun, 14 Apr 2013 18:10:44 +0000 (11:10 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"Misc fixlets"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf: Fix error return code
ftrace: Fix strncpy() use, use strlcpy() instead of strncpy()
perf: Fix strncpy() use, use strlcpy() instead of strncpy()
perf: Fix strncpy() use, always make sure it's NUL terminated
perf: Fix ring_buffer perf_output_space() boundary calculation
perf/x86: Fix uninitialized pt_regs in intel_pmu_drain_bts_buffer()
Linus Torvalds [Sun, 14 Apr 2013 17:55:20 +0000 (10:55 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"One fix for a hotplug locking regressions, and one fix for an oops if
you unplug the monitor at an inopportune moment on the udl device."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/fb-helper: Fix locking in drm_fb_helper_hotplug_event
udl: handle EDID failure properly.
Linus Torvalds [Sun, 14 Apr 2013 17:54:40 +0000 (10:54 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/gerg/m68knommu
Pull m68knommu fix from Greg Ungerer:
"This contains only a single compilation fix for ColdFire m68k targets
that use local non-GPIOLIB support."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68k: define a local gpio_request_one() function
Linus Torvalds [Sun, 14 Apr 2013 17:53:54 +0000 (10:53 -0700)]
Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fix from Wim Van Sebroeck:
"It will fix compile errors for the at91rm9200_wdt driver"
* git://www.linux-watchdog.org/linux-watchdog:
watchdog: Revert the AT91RM9200_WATCHDOG dependency
Linus Torvalds [Sun, 14 Apr 2013 17:52:54 +0000 (10:52 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs
Pull one more btrfs fix from Chris Mason:
"This has a recent fix from Josef for our tree log replay code. It
fixes problems where the inode counter for the number of bytes in the
file wasn't getting updated properly during fsync replay.
The commit did get rebased this morning, but it was only to clean up
the subject line. The code hasn't changed."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: make sure nbytes are right after log replay
Linus Torvalds [Sun, 14 Apr 2013 17:50:55 +0000 (10:50 -0700)]
Merge tag 'trace-fixes-v3.9-rc-v3' of git://git./linux/kernel/git/rostedt/linux-trace
Pull ftrace fixes from Steven Rostedt:
"Namhyung Kim found and fixed a bug that can crash the kernel by simply
doing: echo 1234 | tee -a /sys/kernel/debug/tracing/set_ftrace_pid
Luckily, this can only be done by root, but still is a nasty bug."
* tag 'trace-fixes-v3.9-rc-v3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
ftrace: Move ftrace_filter_lseek out of CONFIG_DYNAMIC_FTRACE section
tracing: Fix possible NULL pointer dereferences
Linus Torvalds [Sun, 14 Apr 2013 17:06:31 +0000 (10:06 -0700)]
Add file_ns_capable() helper function for open-time capability checking
Nothing is using it yet, but this will allow us to delay the open-time
checks to use time, without breaking the normal UNIX permission
semantics where permissions are determined by the opener (and the file
descriptor can then be passed to a different process, or the process can
drop capabilities).
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Nicolas Ferre [Wed, 10 Apr 2013 12:36:22 +0000 (14:36 +0200)]
watchdog: Revert the AT91RM9200_WATCHDOG dependency
Compiling the at91rm9200_wdt.c driver without at91rm9200
support was leading to several errors:
drivers/built-in.o: In function `at91_wdt_close':
at91_adc.c:(.text+0xc9fe4): undefined reference to `at91_st_base'
drivers/built-in.o: In function `at91_wdt_write':
at91_adc.c:(.text+0xca004): undefined reference to `at91_st_base'
drivers/built-in.o: In function `at91wdt_shutdown':
at91_adc.c:(.text+0xca01c): undefined reference to `at91_st_base'
drivers/built-in.o: In function `at91wdt_suspend':
at91_adc.c:(.text+0xca038): undefined reference to `at91_st_base'
drivers/built-in.o: In function `at91_wdt_open':
at91_adc.c:(.text+0xca0cc): undefined reference to `at91_st_base'
drivers/built-in.o:at91_adc.c:(.text+0xca2c8): more undefined references to
`at91_st_base' follow
So, reverting the modification of the "depends" Kconfig line
introduced by patch
a6a1bcd37 (watchdog: at91rm9200: add DT support)
seems to be the good solution.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Suleiman Souhlal [Sat, 13 Apr 2013 23:03:06 +0000 (16:03 -0700)]
vfs: Revert spurious fix to spinning prevention in prune_icache_sb
Revert commit
62a3ddef6181 ("vfs: fix spinning prevention in prune_icache_sb").
This commit doesn't look right: since we are looking at the tail of the
list (sb->s_inode_lru.prev) if we want to skip an inode, we should put
it back at the head of the list instead of the tail, otherwise we will
keep spinning on it.
Discovered when investigating why prune_icache_sb came top in perf
reports of a swapping load.
Signed-off-by: Suleiman Souhlal <suleiman@google.com>
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: stable@vger.kernel.org # v3.2+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 13 Apr 2013 22:15:30 +0000 (15:15 -0700)]
kobject: fix kset_find_obj() race with concurrent last kobject_put()
Anatol Pomozov identified a race condition that hits module unloading
and re-loading. To quote Anatol:
"This is a race codition that exists between kset_find_obj() and
kobject_put(). kset_find_obj() might return kobject that has refcount
equal to 0 if this kobject is freeing by kobject_put() in other
thread.
Here is timeline for the crash in case if kset_find_obj() searches for
an object tht nobody holds and other thread is doing kobject_put() on
the same kobject:
THREAD A (calls kset_find_obj()) THREAD B (calls kobject_put())
splin_lock()
atomic_dec_return(kobj->kref), counter gets zero here
... starts kobject cleanup ....
spin_lock() // WAIT thread A in kobj_kset_leave()
iterate over kset->list
atomic_inc(kobj->kref) (counter becomes 1)
spin_unlock()
spin_lock() // taken
// it does not know that thread A increased counter so it
remove obj from list
spin_unlock()
vfree(module) // frees module object with containing kobj
// kobj points to freed memory area!!
kobject_put(kobj) // OOPS!!!!
The race above happens because module.c tries to use kset_find_obj()
when somebody unloads module. The module.c code was introduced in
commit
6494a93d55fa"
Anatol supplied a patch specific for module.c that worked around the
problem by simply not using kset_find_obj() at all, but rather than make
a local band-aid, this just fixes kset_find_obj() to be thread-safe
using the proper model of refusing the get a new reference if the
refcount has already dropped to zero.
See examples of this proper refcount handling not only in the kref
documentation, but in various other equivalent uses of this pattern by
grepping for atomic_inc_not_zero().
[ Side note: the module race does indicate that module loading and
unloading is not properly serialized wrt sysfs information using the
module mutex. That may require further thought, but this is the
correct fix at the kobject layer regardless. ]
Reported-analyzed-and-tested-by: Anatol Pomozov <anatol.pomozov@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Wanpeng Li [Sat, 13 Apr 2013 13:01:31 +0000 (21:01 +0800)]
staging: zcache/debug: fix coding style
Fix coding style issue: ERROR: space prohibited before that '++' (ctx:WxO)
and line beyond 8 characters.
Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wanpeng Li [Sat, 13 Apr 2013 13:01:30 +0000 (21:01 +0800)]
staging: ramster/debug: Add CONFIG_RAMSTER_DEBUG Kconfig entry
Add CONFIG_RAMSTER_DEBUG Kconfig entry.
Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wanpeng Li [Sat, 13 Apr 2013 13:01:29 +0000 (21:01 +0800)]
staging: ramster: Add incremental accessory counters
Add incremental accessory counters that are going to be used for
debug fs entries.
Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wanpeng Li [Sat, 13 Apr 2013 13:01:28 +0000 (21:01 +0800)]
staging: ramster/debug: Use an array to initialize/use debugfs attributes
Use an array to initialize/use debugfs attributes, it makes them
neater as zcache/debug.c does.
Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wanpeng Li [Sat, 13 Apr 2013 13:01:27 +0000 (21:01 +0800)]
staging: ramster: Move debugfs code out of ramster.c file
Note that at this point there is no CONFIG_RAMSTER_DEBUG
option in the Kconfig. So in effect all of the counters
are nop until that option gets introduced in patch:
ramster/debug: Add CONFIG_RAMSTER_DEBUG Kconfig entry
Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Josef Bacik [Fri, 5 Apr 2013 20:50:09 +0000 (20:50 +0000)]
Btrfs: make sure nbytes are right after log replay
While trying to track down a tree log replay bug I noticed that fsck was always
complaining about nbytes not being right for our fsynced file. That is because
the new fsync stuff doesn't wait for ordered extents to complete, so the inodes
nbytes are not necessarily updated properly when we log it. So to fix this we
need to set nbytes to whatever it is on the inode that is on disk, so when we
replay the extents we can just add the bytes that are being added as we replay
the extent. This makes it work for the case that we have the wrong nbytes or
the case that we logged everything and nbytes is actually correct. With this
I'm no longer getting nbytes errors out of btrfsck.
Cc: stable@vger.kernel.org
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Dave Hansen [Fri, 12 Apr 2013 23:23:54 +0000 (16:23 -0700)]
x86-32: Fix possible incomplete TLB invalidate with PAE pagetables
This patch attempts to fix:
https://bugzilla.kernel.org/show_bug.cgi?id=56461
The symptom is a crash and messages like this:
chrome: Corrupted page table at address
34a03000
*pdpt =
0000000000000000 *pde =
0000000000000000
Bad pagetable: 000f [#1] PREEMPT SMP
Ingo guesses this got introduced by commit
611ae8e3f520 ("x86/tlb:
enable tlb flush range support for x86") since that code started to free
unused pagetables.
On x86-32 PAE kernels, that new code has the potential to free an entire
PMD page and will clear one of the four page-directory-pointer-table
(aka pgd_t entries).
The hardware aggressively "caches" these top-level entries and invlpg
does not actually affect the CPU's copy. If we clear one we *HAVE* to
do a full TLB flush, otherwise we might continue using a freed pmd page.
(note, we do this properly on the population side in pud_populate()).
This patch tracks whenever we clear one of these entries in the 'struct
mmu_gather', and ensures that we follow up with a full tlb flush.
BTW, I disassembled and checked that:
if (tlb->fullmm == 0)
and
if (!tlb->fullmm && !tlb->need_flush_all)
generate essentially the same code, so there should be zero impact there
to the !PAE case.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Artem S Tashkinov <t.artem@mailcity.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 12 Apr 2013 22:26:42 +0000 (15:26 -0700)]
Merge git://git./linux/kernel/git/nab/target-pending
Pull SCSI target fixes from Nicholas Bellinger:
"Here are remaining target-pending items for v3.9-rc7 code.
The tcm_vhost patches are more than I'd usually include in a -rc7
pull, but are changes required for v3.9 to work correctly with the
pending vhost-scsi-pci QEMU upstream series merge. (Paolo CC'ed)
Plus Asias's conversion to use vhost_virtqueue->private_data + RCU for
managing vhost-scsi endpoints has gotten alot of review + testing over
the past weeks, and MST has ACKed the full series.
Also, there is a target patch to fix a long-standing bug within
control CDB handling with Standby/Offline/Transition ALUA port access
states, that had been incorrectly rejecting the control CDBs required
for LUN scan to work during these port group states. CC'ing to
stable."
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
target: Fix incorrect fallthrough of ALUA Standby/Offline/Transition CDBs
tcm_vhost: Send bad target to guest when cmd fails
tcm_vhost: Add vhost_scsi_send_bad_target() helper
tcm_vhost: Fix tv_cmd leak in vhost_scsi_handle_vq
tcm_vhost: Remove double check of response
tcm_vhost: Initialize vq->last_used_idx when set endpoint
tcm_vhost: Use vq->private_data to indicate if the endpoint is setup
tcm_vhost: Use ACCESS_ONCE for vs->vs_tpg[target] access
Linus Torvalds [Fri, 12 Apr 2013 22:18:56 +0000 (15:18 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of ten bug fixes (and two consisting of copyright year
update and version number change) pretty much all of which involve
either a crash or a hang except the removal of the random sleep from
the qla2xxx driver (which is a coding error so bad, we want it gone
before anyone has a chance to copy it)."
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
[SCSI] lpfc: fix potential NULL pointer dereference in lpfc_sli4_rq_put()
[SCSI] libsas: fix handling vacant phy in sas_set_ex_phy()
[SCSI] ibmvscsi: Fix slave_configure deadlock
[SCSI] qla2xxx: Update the driver version to 8.04.00.13-k.
[SCSI] qla2xxx: Remove debug code that msleeps for random duration.
[SCSI] qla2xxx: Update copyright dates information in LICENSE.qla2xxx file.
[SCSI] qla2xxx: Fix crash during firmware dump procedure.
[SCSI] Revert "qla2xxx: Add setting of driver version string for vendor application."
[SCSI] ipr: dlpar failed when adding an adapter back
[SCSI] ipr: fix addition of abort command to HRRQ free queue
[SCSI] st: Take additional queue ref in st_probe
[SCSI] libsas: use right function to alloc smp response
[SCSI] ipr: ipr_test_msi() fails when running with msi-x enabled adapter
Linus Torvalds [Fri, 12 Apr 2013 22:18:20 +0000 (15:18 -0700)]
Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Pull CIFS fix from Steve French:
"Fixes a regression in cifs in which a password which begins with a
comma is parsed incorrectly as a blank password"
* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Allow passwords which begin with a delimitor
Wanpeng Li [Fri, 12 Apr 2013 01:31:21 +0000 (09:31 +0800)]
staging: ramster: decrease foregin pers pages when count < 0
commit
9a5c59687ad ("staging: ramster: Provide accessory functions for
counter decrease") forget decrease foregin pers pages, this patch fix
it.
Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ian Abbott [Fri, 12 Apr 2013 12:00:49 +0000 (13:00 +0100)]
staging: comedi: amplc_dio200_pci: use pci_ioremap_bar()
Use `pci_ioremap_bar()` to ioremap the PCI memory resources. That
function just takes the PCI device and a bar index. It also has some
additional sanity checks to make sure the bar is actually a memory
resource.
Eliminate some local variables from `dio200_pcie_board_setup()` and
`dio200_pci_auto_attach()` that were used to hold the results of
`pci_resource_len()` and `pci_resource_start()` that were only used
once. Also eliminate the check that the bar is a memory resource in
`dio200_pcie_board_setup()` as `pci_ioremap_bar()` will do that for us.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ian Abbott [Fri, 12 Apr 2013 12:57:54 +0000 (13:57 +0100)]
staging: comedi: 8255_pci: check BAR resource type directly
This driver handles one or more 8255 DIO subdevices mapped contiguously
at the start of a PCI BAR resource. The resource may be a portio
resource or an mmio resource. The driver currently checks the `is_mmio`
member of the matching element of `pci_8255_boards[]` to determine the
type of resource. Rather than doing that, get the information straight
from the horse's mouth by checking the resource flags of the PCI BAR
and eliminate the `is_mmio` member.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ian Abbott [Fri, 12 Apr 2013 14:01:10 +0000 (15:01 +0100)]
staging: comedi: addi_apci_*: replace ADDIDATA_OLD with AMCC
PCI vendor ID 0x10e8 is assigned to Applied Micro Circuits Corporation
(recently AppliedMicro, but AMCC on NASDAQ). The ID currently appears
as `PCI_VENDOR_ID_ADDIDATA_OLD` in "include/linux/pci_ids.h" and is used
by the "addi_apci_1500", "addi_apci_1710" and "addi_apci_3120" comedi
drivers. (It is also used by the "8250_pci" serial driver.)
"comedidev.h" defines `PCI_VENDOR_ID_AMCC` locally with the same value
as `PCI_VENDOR_ID_ADDIDATA_OLD` and is currently used by the
"adl_pci9118" comedi driver. Despite `PCI_VENDOR_ID_ADDIDATA_OLD` being
in "pci_ids.h", `PCI_VENDOR_ID_AMCC` is a more sensible name, so change
the comedi drivers to use it.
Once several drivers are using `PCI_VENDOR_ID_AMCC` we'll have a good
excuse to move it into "pci_ids.h" and change the "8250_pci" serial
driver to use it.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ian Abbott [Fri, 12 Apr 2013 16:01:54 +0000 (17:01 +0100)]
staging: comedi: amplc_pc263: split out PCI support
The "amplc_pc263" module is a hybrid driver for Amplicon PC263 (ISA) and
PCI263 (PCI) and uses conditional compilation (and compiler
optimization) to compile in the support for the different bus types.
Split out support for the PCI263 into a new module "amplc_pci263",
retaining support for the PC263 in the existing module "amplc_pc263".
Don't bother supporting the legacy attach mechanism for PCI board in the
new module as that is no longer in vogue for the comedi drivers and the
PCI263 board has no special configuration requirements.
Although the code to handle the single subdevice of each board is the
same for both drivers, this is only a small amount of code and I don't
think it's worth creating a common module to handle it.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Fri, 12 Apr 2013 17:11:54 +0000 (10:11 -0700)]
staging: comedi: use EXPORT_SYMBOL_GPL() for all exported symbols
Comedi is licensed under GPL. Some if its exports are currently
EXPORT_SYMBOL() and others are EXPORT_SYMBOL_GPL(). Change them all
to EXPORT_SYMBOL_GPL() and see if anyone reports any fall out.
If any of the symbols "need" to be EXPORT_SYMBOL() they will be
addressed as needed.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Fri, 12 Apr 2013 16:58:45 +0000 (09:58 -0700)]
staging: comedi: unionxx5: allocate 'usp' before using it
As reported by the kbuild test robot, the 'usp' pointer needs to be
allocated before being used.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wei Yongjun [Fri, 12 Apr 2013 14:41:48 +0000 (22:41 +0800)]
staging: dwc2: fix error return code in dwc2_hcd_init()
Fix to return a negative error code from the error handling
case instead of 0, as returned elsewhere in this function.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Matthijs Kooijman <matthijs@stdin.nl>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Steven Rostedt (Red Hat) [Fri, 12 Apr 2013 20:40:13 +0000 (16:40 -0400)]
ftrace: Move ftrace_filter_lseek out of CONFIG_DYNAMIC_FTRACE section
As ftrace_filter_lseek is now used with ftrace_pid_fops, it needs to
be moved out of the #ifdef CONFIG_DYNAMIC_FTRACE section as the
ftrace_pid_fops is defined when DYNAMIC_FTRACE is not.
Cc: stable@vger.kernel.org
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Namhyung Kim [Thu, 11 Apr 2013 06:55:01 +0000 (15:55 +0900)]
tracing: Fix possible NULL pointer dereferences
Currently set_ftrace_pid and set_graph_function files use seq_lseek
for their fops. However seq_open() is called only for FMODE_READ in
the fops->open() so that if an user tries to seek one of those file
when she open it for writing, it sees NULL seq_file and then panic.
It can be easily reproduced with following command:
$ cd /sys/kernel/debug/tracing
$ echo 1234 | sudo tee -a set_ftrace_pid
In this example, GNU coreutils' tee opens the file with fopen(, "a")
and then the fopen() internally calls lseek().
Link: http://lkml.kernel.org/r/1365663302-2170-1-git-send-email-namhyung@kernel.org
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: stable@vger.kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Linus Torvalds [Fri, 12 Apr 2013 14:45:17 +0000 (07:45 -0700)]
Merge tag 'sound-3.9' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"This contains a few small ASoC fixes (wm8903, wm5102, samsung-i2s,
tegra, and soc-compress) and an endian fix for NI USB-audio devices,
update for Mark's e-mail address.
No scary changes, AFAIS."
* tag 'sound-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
MAINTAINERS: Update e-mail address
ASoC: wm5102: Correct lookup of arizona struct in SYSCLK event
ASoC: wm8903: Fix the bypass to HP/LINEOUT when no DAC or ADC is running
ALSA: usb-audio: fix endianness bug in snd_nativeinstruments_*
ASoC: tegra: Don't claim to support PCM pause and resume
ASoC: Samsung: set drvdata before adding secondary device
ASoC: Samsung: return error if drvdata is not set
ASoC: compress: Cancel delayed power down if needed
ASoC: core: Fix to check return value of snd_soc_update_bits_locked()
Takashi Iwai [Fri, 12 Apr 2013 11:53:35 +0000 (13:53 +0200)]
Merge tag 'asoc-maintainers-v3.9-rc6' of git://git./linux/kernel/git/broonie/sound into for-linus
MAINTAINERS: Update e-mail address
Update the e-mail address I use for subsystems.
Mark Brown [Fri, 12 Apr 2013 10:39:57 +0000 (11:39 +0100)]
MAINTAINERS: Update e-mail address
Update the e-mail address I use for subsystems.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Takashi Iwai [Fri, 12 Apr 2013 08:27:39 +0000 (10:27 +0200)]
Merge tag 'asoc-v3.9-rc6' of git://git./linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v3.9
A few updates, more than I'd like, fixing some relatively small issues
but mostly driver specific ones. Nothing wildly exciting so if it
doesn't make v3.9 it won't be the end of the world but it'd be nice.
Boris Ostrovsky [Thu, 11 Apr 2013 17:59:52 +0000 (13:59 -0400)]
x86/mm: Flush lazy MMU when DEBUG_PAGEALLOC is set
When CONFIG_DEBUG_PAGEALLOC is set page table updates made by
kernel_map_pages() are not made visible (via TLB flush)
immediately if lazy MMU is on. In environments that support lazy
MMU (e.g. Xen) this may lead to fatal page faults, for example,
when zap_pte_range() needs to allocate pages in
__tlb_remove_page() -> tlb_next_batch().
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: konrad.wilk@oracle.com
Link: http://lkml.kernel.org/r/1365703192-2089-1-git-send-email-boris.ostrovsky@oracle.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Andrea Arcangeli [Thu, 11 Apr 2013 13:36:09 +0000 (15:36 +0200)]
x86/mm/cpa/selftest: Fix false positive in CPA self test
If the pmd is not present, _PAGE_PSE will not be set anymore.
Fix the false positive.
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: Stefan Bader <stefan.bader@canonical.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Borislav Petkov <bp@alien8.de>
Link: http://lkml.kernel.org/r/1365687369-30802-1-git-send-email-aarcange@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Wei Yongjun [Fri, 12 Apr 2013 03:05:54 +0000 (11:05 +0800)]
perf: Fix error return code
Fix to return -ENOMEM in the allocation error case instead of 0
(if pmu_bus_running == 1), as done elsewhere in this function.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Cc: a.p.zijlstra@chello.nl
Cc: paulus@samba.org
Cc: acme@ghostprotocols.net
Link: http://lkml.kernel.org/r/CAPgLHd8j_fWcgqe%3DKLWjpBj%2B%3Do0Pw6Z-SEq%3DNTPU08c2w1tngQ@mail.gmail.com
[ Tweaked the error code setting placement and the changelog. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Daniel Vetter [Thu, 11 Apr 2013 14:26:55 +0000 (14:26 +0000)]
drm/fb-helper: Fix locking in drm_fb_helper_hotplug_event
Driver's and ->fill_modes functions are allowed to grab crtc mutexes
(for e.g. load detect). Hence we need to first only grab the general
kms mutex, and only in a second step grab all locks to do the
modesets.
This prevents a deadlock on my gm45 in the tv load detect code called
by drm_helper_probe_single_connector_modes.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Fri, 12 Apr 2013 03:25:20 +0000 (13:25 +1000)]
udl: handle EDID failure properly.
Don't oops seems proper.
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Linus Torvalds [Fri, 12 Apr 2013 03:35:11 +0000 (20:35 -0700)]
Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine fixes from Vinod Koul:
"The first one fixes issue in pl330 to check for DT compatible and
the second one fixes omap-dma to start without delay"
* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: omap-dma: Start DMA without delay for cyclic channels
DMA: PL330: Add check if device tree compatible
Linus Torvalds [Fri, 12 Apr 2013 03:33:38 +0000 (20:33 -0700)]
Merge tag 'pm-3.9-rc7' of git://git./linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
- System reboot/halt fix related to CPU offline ordering from Huacai
Chen.
- intel_pstate driver fix for a delay time computation error
occasionally crashing systems using it from Dirk Brandewie.
* tag 'pm-3.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM / reboot: call syscore_shutdown() after disable_nonboot_cpus()
cpufreq / intel_pstate: Set timer timeout correctly
Linus Torvalds [Fri, 12 Apr 2013 01:22:20 +0000 (18:22 -0700)]
Merge tag 'regmap-v3.9-rc6' of git://git./linux/kernel/git/broonie/regmap
Pull regmap revert from Mark Brown:
"regmap: Back out work buffer fix
This reverts commit bc8ce4 (regmap: don't corrupt work buffer in
_regmap_raw_write()) since it turns out that it can cause issues when
taken in isolation from the other changes in -next that lead to its
discovery. On the basis that nobody noticed the problems for quite
some time without that subsequent work let's drop it from v3.9."
* tag 'regmap-v3.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: Back out work buffer fix
Linus Torvalds [Fri, 12 Apr 2013 01:21:45 +0000 (18:21 -0700)]
Merge tag 'gpio-fixes-v3.9-rc6' of git://git./linux/kernel/git/linusw/linux-gpio
Pull GPIO fix from Linus Walleij:
"Oneliner fix for the PCA 953x driver."
* tag 'gpio-fixes-v3.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: pca953x: fix irq_domain_add_simple usage
Linus Torvalds [Fri, 12 Apr 2013 01:20:31 +0000 (18:20 -0700)]
Merge tag 'arm-soc-fixes' of git://git./linux/kernel/git/arm/arm-soc
Pull ARM SoC bug fixes from Arnd Bergmann:
"A little later during the week than the last few pull requests, since
there was very little that came in before 3.9-rc6. At least things
have calmed down again here.
Some important bug fixes that came in over the last 10 days, mostly
mvebu and imx:
- Multiple regressions on i.mx following the conversion of the clock
code, hopefully the last we are seeing of those.
- a regression in the mvebu irq handling code
- An incorrect register offset in the rewritten s3c24xx irq code.
- Two bugs in setting up the iomega_ix2_200 machine
- Turning on an extra bus clock on imx
- A MAINTAINERS file entry for Roland Stigge"
* tag 'arm-soc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
arm: mvebu: Fix the irq map function in SMP mode
Fix GE0/GE1 init on ix2-200 as GE0 has no PHY
ARM: S3C24XX: Fix interrupt pending register offset of the EINT controller
ARM: S3C24XX: Correct NR_IRQS definition for s3c2440
ARM i.MX6: Fix ldb_di clock selection
ARM: imx: provide twd clock lookup from device tree
ARM: imx35 Bugfix admux clock
ARM: clk-imx35: Bugfix iomux clock
ARM: mxs: Slow down the I2C clock speed
MAINTAINERS: Add maintainer for LPC32xx
ARM: Kirkwood: Fix typo in the definition of ix2-200 rebuild LED
Wei Yongjun [Sun, 2 Dec 2012 13:33:24 +0000 (08:33 -0500)]
[SCSI] lpfc: fix potential NULL pointer dereference in lpfc_sli4_rq_put()
The dereference to 'put_index' should be moved below the NULL test.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Matthijs Kooijman [Thu, 11 Apr 2013 16:43:47 +0000 (18:43 +0200)]
staging: dwc2: Make dwc2_set_uninitialized more specific
Before, it was a function that would set all members of a given struct
containing only int members to -1. Now, it is renamed to
dwc_set_all_params and it works only on the dwc2_core_params struct.
This makes sure that all of the slightly dubious casting and assumptions
happen inside the function instead of by the caller.
Signed-off-by: Matthijs Kooijman <matthijs@stdin.nl>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Matthijs Kooijman [Thu, 11 Apr 2013 16:43:46 +0000 (18:43 +0200)]
staging: dwc2: set the driver name to "dwc2"
Previously, it was "dwc_otg", but this does not correspond to the
directory name and might cause confusion with the old out-of-tree
dwc_otg driver of which many versions circulate.
Signed-off-by: Matthijs Kooijman <matthijs@stdin.nl>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Devendra Naga [Wed, 10 Apr 2013 07:04:00 +0000 (12:34 +0530)]
staging: et131x: cancel_work when module gets unloaded
The work item has been added to the queue using INIT_WORK and scheduled
in interrupt handler. when module unloads that work item has not been
removed from the queue. remove and stop its further execution when the
module unloaded
Cc: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wanpeng Li [Wed, 10 Apr 2013 00:25:54 +0000 (08:25 +0800)]
staging: ramster: Provide accessory functions for counter decrease
This patch enables these functions to be wrapped and
can disable/enable this with CONFIG_DEBUG_FS.
Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wanpeng Li [Wed, 10 Apr 2013 00:25:53 +0000 (08:25 +0800)]
staging: ramster: Provide accessory functions for counter increase
This patch enables these functions to be wrapped and can disable/enable
this with CONFIG_DEBUG_FS.
Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Matthijs Kooijman [Thu, 11 Apr 2013 15:52:41 +0000 (17:52 +0200)]
staging: dwc2: register common irq handler in dwc2_core_init
Before, this was initialized in pci.c, after the dwc2_hcd_init was
called and the interrupts were enabled. This opened up a small time
window where common interrupts could be triggered, but there was no
handler for them, causing them to keep triggering infinitely and locking
up the machine.
On my RT3052 board this bug could be easily reproduced by hardcoding
the console log level to 8, so that a bunch of debug output from the dwc2
driver was generated inside this time window. This caused the interrupt
lockup to occur almost every time.
By requesting the irq inside dwc2_core_init and by disabling interrupts
before calling dwc2_core_init instead of after, we can be sure the
handler is registered before the interrupts are enabled, which should
close this window.
Reported-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Matthijs Kooijman <matthijs@stdin.nl>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Matthijs Kooijman [Thu, 11 Apr 2013 15:52:40 +0000 (17:52 +0200)]
staging: dwc2: don't pass IRQ_LEVEL to devm_request_irq
It seems this flag is intended to pass to irq_set_status_flags, not
request_irq, and is not available on all architectures. Its value
corresponds to IRQF_PROBE_SHARED, which shouldn't be needed for this
driver, so removing this flag should be safe.
Signed-off-by: Matthijs Kooijman <matthijs@stdin.nl>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wanpeng Li [Wed, 10 Apr 2013 00:25:51 +0000 (08:25 +0800)]
staging: zcache: fix account foregin counters against zero-filled pages
zero-filled pages won't be compressed and sent to remote system. Monitor
the number ephemeral and persistent pages that Ramster has sent make no
sense. This patch skip account foregin counters against zero-filled pages.
Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Sascha Hauer [Thu, 11 Apr 2013 09:04:21 +0000 (11:04 +0200)]
staging: drm/imx: update TODO file
One of the main things to do to the driver is to support
the common display famework (CDF) to hit mainline. As this will
make some changes to the devicetree bindings necessary it makes
sense to do it before we move out of staging.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Wed, 10 Apr 2013 18:32:51 +0000 (11:32 -0700)]
staging: comedi: ii_pci20kc: remove comment about 2.4 kernels
This comment about using ioremap() for 2.4 kernels is not necessary.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Wed, 10 Apr 2013 18:32:30 +0000 (11:32 -0700)]
staging: comedi: addi_common: remove i_IorangeBase0 from boardinfo
The i_IorangeBase0 boardinfo is not used. Remove it.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Wed, 10 Apr 2013 18:32:07 +0000 (11:32 -0700)]
staging: comedi: addi_common: remove i_IorangeBase2 from boardinfo
The i_IorangeBase2 boardinfo is not used. Remove it.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Wed, 10 Apr 2013 18:31:46 +0000 (11:31 -0700)]
staging: comedi: addi_common: remove i_IorangeBase3 from boardinfo
When it is used, the entire PCI bar is ioremap'ed with pci_ioremap_bar().
The i_IorangeBase3 boardinfo is no longer needed.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Wed, 10 Apr 2013 18:31:24 +0000 (11:31 -0700)]
staging: comedi: addi_common: use pci_ioremap_bar()
Use pci_ioremap_bar() to ioremap the PCI resources. That function
just takes the pci device and a bar number. It also has some
additional sanity checks to make sure the bar is actually a
memory resource.
This also makes sure that the entire PCI bar is ioremap'ed instead
of assuming the size of the bar.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Wed, 10 Apr 2013 18:31:05 +0000 (11:31 -0700)]
staging: comedi: jr3_pci: use pci_ioremap_bar()
Use pci_ioremap_bar() to ioremap the PCI resources. That function
just takes the pci device and a bar number. It also has some
additional sanity checks to make sure the bar is actually a
memory resource.
This also makes sure that the entire PCI bar is ioremap'ed instead
of assuming the size of the bar.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Wed, 10 Apr 2013 18:30:45 +0000 (11:30 -0700)]
staging: comedi: mite: use pci_ioremap_bar()
Use pci_ioremap_bar() to ioremap the PCI resources. That function
just takes the pci device and a bar number. It also has some
additional sanity checks to make sure the bar is actually a
memory resource.
This also makes sure that the entire PCI bar is ioremap'ed instead
of assuming the size of a bar.
For aesthetic reasons, don't set the private data phys_addr vars
until after the ioremap is successful.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Wed, 10 Apr 2013 18:30:28 +0000 (11:30 -0700)]
staging: comedi: icp_multi: use pci_ioremap_bar()
Use pci_ioremap_bar() to ioremap the PCI resources. That function
just takes the pci device and a bar number. It also has some
additional sanity checks to make sure the bar is actually a
memory resource.
This also makes sure that the entire PCI bar is ioremap'ed instead
of assuming the size of the bar.
Also, since this driver only uses memory mapped I/O it is not
necessary to set the dev->iobase.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Wed, 10 Apr 2013 18:30:11 +0000 (11:30 -0700)]
staging: comedi: 8255_pci: use pci_ioremap_bar()
Use pci_ioremap_bar() to ioremap the PCI resources. That function
just takes the pci device and a bar number. It also has some
additional sanity checks to make sure the bar is actually a
memory resource.
Refactor the code a bit. The dev->iobase only needs to be set
when the board does not use memory mapped I/O. And the 'iobase'
passed to subdev_8255_init() is an unsigned long.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Wed, 10 Apr 2013 18:29:07 +0000 (11:29 -0700)]
staging: comedi: dt3000: use pci_ioremap_bar()
Use pci_ioremap_bar() to ioremap the PCI resources. That function
just takes the pci device and a bar number. It also has some
additional sanity checks to make sure the bar is actually a
memory resource.
This also makes sure that the entire PCI bar is ioremap'ed instead
of assuming the size of the bar.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Wed, 10 Apr 2013 18:28:47 +0000 (11:28 -0700)]
staging: comedi: cb_pcidas64: tidy up the *phys_iobase
This driver does not use the dev->iobase so don't bother initializing
it.
The plx9080_phys_iobase is not used in the driver. Remove it from the
private data.
Tidy up the initialization of the other phy_iobase variables.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Wed, 10 Apr 2013 18:28:28 +0000 (11:28 -0700)]
staging: comedi: cb_pcidas64: use pci_ioremap_bar()
Use pci_ioremap_bar() to ioremap the PCI resources. That function
just takes the pci device and a bar number. It also has some
additional sanity checks to make sure the bar is actually a
memory resource.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Wed, 10 Apr 2013 18:28:10 +0000 (11:28 -0700)]
staging: comedi: cb_pcidas64: remove the base_address_regions enum
This enum is only used in the ioremap of the PCI resources and it
doesn't really help make the code any clearer.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Wed, 10 Apr 2013 18:27:50 +0000 (11:27 -0700)]
staging: comedi: s626: use pci_ioremap_bar()
Use pci_ioremap_bar() to ioremap the PCI resources. That function
just takes the pci device and a bar number. It also has some
additional sanity checks to make sure the bar is actually a
memory resource.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Wed, 10 Apr 2013 18:27:33 +0000 (11:27 -0700)]
staging: comedi: me_daq: use pci_ioremap_bar()
Use pci_ioremap_bar() to ioremap the PCI resources. That function
just takes the pci device and a bar number. It also has some
additional sanity checks to make sure the bar is actually a
memory resource.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Wed, 10 Apr 2013 18:27:13 +0000 (11:27 -0700)]
staging: comedi: gsc_hpdi: use pci_ioremap_bar()
Use pci_ioremap_bar() to ioremap the PCI resources. That function
just takes the pci device and a bar number. It also has some
additional sanity checks to make sure the bar is actually a
memory resource.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Wed, 10 Apr 2013 18:26:54 +0000 (11:26 -0700)]
staging: comedi: gsc_hpdi: remove the base_address_regions enum
This enum is only used in the ioremap of the PCI resources and it
doesn't really help make the code any clearer.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H Hartley Sweeten [Wed, 10 Apr 2013 18:26:34 +0000 (11:26 -0700)]
staging: comedi: daqboard2000: use pci_ioremap_bar()
Use pci_ioremap_bar() to ioremap the PCI resources. That function
just takes the pci device and a bar number. It also has some
additional sanity checks to make sure the bar is actually a
memory resource.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>