git.stricted.de - GitHub/LineageOS/android_kernel_samsung

author	Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
	Thu, 31 May 2007 16:43:34 +0000 (09:43 -0700)
committer	Greg Kroah-Hartman <gregkh@suse.de>
	Wed, 11 Jul 2007 23:02:08 +0000 (16:02 -0700)
commit	f477836457730a2b925f625023ec4e5bf11015be
tree	178c8e7efd7a3f8f0220d3da537d649f4cb1278f	tree \| snapshot (tar.gz zip)
parent	adf809d01043d8808e47db2d35fc07b53062884e	commit \| diff

PCI: hotplug: pciehp: Fix possible race condition in writing slot

The slot control register is modified as follows:

    (1) Read the register value
    (2) Change the value
    (3) Write the value to the register

Those must be done atomically, otherwise writing to control register
would cause an unexpected result.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/pci/hotplug/pciehp.h		diff \| blob \| blame \| history
drivers/pci/hotplug/pciehp_hpc.c		diff \| blob \| blame \| history