From: Christopher Li Date: Tue, 19 Apr 2005 00:39:26 +0000 (-0700) Subject: [PATCH] USB: bug fix in usbdevfs X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=668a9541a56af5ebb3ad0babdc2cd73511c9e1e9;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git [PATCH] USB: bug fix in usbdevfs I am sorry that the last patch about 32 bit compat ioctl on 64 bit kernel actually breaks the usbdevfs. That is on the current BK tree. I am retarded. Here is the patch to fix it. Tested with USB hard disk and webcam in both 32bit compatible mode and native 64bit mode. Again, sorry about that. From: Christopher Li Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index a047bc392983..923e5185c036 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -1032,15 +1032,15 @@ static int processcompl(struct async *as, void __user * __user *arg) if (put_user(urb->error_count, &userurb->error_count)) return -EFAULT; - if (!(usb_pipeisoc(urb->pipe))) - return 0; - for (i = 0; i < urb->number_of_packets; i++) { - if (put_user(urb->iso_frame_desc[i].actual_length, - &userurb->iso_frame_desc[i].actual_length)) - return -EFAULT; - if (put_user(urb->iso_frame_desc[i].status, - &userurb->iso_frame_desc[i].status)) - return -EFAULT; + if (usb_pipeisoc(urb->pipe)) { + for (i = 0; i < urb->number_of_packets; i++) { + if (put_user(urb->iso_frame_desc[i].actual_length, + &userurb->iso_frame_desc[i].actual_length)) + return -EFAULT; + if (put_user(urb->iso_frame_desc[i].status, + &userurb->iso_frame_desc[i].status)) + return -EFAULT; + } } free_async(as); @@ -1126,7 +1126,7 @@ static int proc_submiturb_compat(struct dev_state *ps, void __user *arg) if (get_urb32(&uurb,(struct usbdevfs_urb32 *)arg)) return -EFAULT; - return proc_do_submiturb(ps, &uurb, ((struct usbdevfs_urb __user *)arg)->iso_frame_desc, arg); + return proc_do_submiturb(ps, &uurb, ((struct usbdevfs_urb32 __user *)arg)->iso_frame_desc, arg); } static int processcompl_compat(struct async *as, void __user * __user *arg) @@ -1146,15 +1146,15 @@ static int processcompl_compat(struct async *as, void __user * __user *arg) if (put_user(urb->error_count, &userurb->error_count)) return -EFAULT; - if (!(usb_pipeisoc(urb->pipe))) - return 0; - for (i = 0; i < urb->number_of_packets; i++) { - if (put_user(urb->iso_frame_desc[i].actual_length, - &userurb->iso_frame_desc[i].actual_length)) - return -EFAULT; - if (put_user(urb->iso_frame_desc[i].status, - &userurb->iso_frame_desc[i].status)) - return -EFAULT; + if (usb_pipeisoc(urb->pipe)) { + for (i = 0; i < urb->number_of_packets; i++) { + if (put_user(urb->iso_frame_desc[i].actual_length, + &userurb->iso_frame_desc[i].actual_length)) + return -EFAULT; + if (put_user(urb->iso_frame_desc[i].status, + &userurb->iso_frame_desc[i].status)) + return -EFAULT; + } } free_async(as); @@ -1177,10 +1177,8 @@ static int proc_reapurbnonblock_compat(struct dev_state *ps, void __user *arg) { struct async *as; - printk("reapurbnblock\n"); if (!(as = async_getcompleted(ps))) return -EAGAIN; - printk("reap got as %p\n", as); return processcompl_compat(as, (void __user * __user *)arg); }