xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

rt2x00usb: Use usb anchor to manage URB

Browse Source 
With current driver, it is observed that a URB is not
completed while the USB disconnect is initiated. Due to
that, the URB completion handler is trying to access
the resource which was freed as a part of USB disconnect.
Managing the URBs with anchor will make sure that all
the URBs are handled gracefully before device gets
disconnected.

Signed-off-by: Vishal Thanki <vishalthanki@gmail.com>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Vishal Thanki
2016-03-19 11:41:01 +01:00
committed by Kalle Valo
parent e32993eb3a
commit 8b4c000931
3 changed files with 25 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
View File

@@ -1422,11 +1422,14 @@ void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev)
cancel_work_sync(&rt2x00dev->intf_work);
cancel_delayed_work_sync(&rt2x00dev->autowakeup_work);
cancel_work_sync(&rt2x00dev->sleep_work);
#ifdef CONFIG_RT2X00_LIB_USB
if (rt2x00_is_usb(rt2x00dev)) {
usb_kill_anchored_urbs(rt2x00dev->anchor);
hrtimer_cancel(&rt2x00dev->txstatus_timer);
cancel_work_sync(&rt2x00dev->rxdone_work);
cancel_work_sync(&rt2x00dev->txdone_work);
}
#endif
if (rt2x00dev->workqueue)
destroy_workqueue(rt2x00dev->workqueue);