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| author | Oliver Neukum <oliver@neukum.org> | 2009-04-29 17:12:12 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2009-04-29 17:25:01 +0200 |
| commit | 89092ddd7aca598e3b8874f7a49216e7917d8f3f (patch) | |
| tree | 138fe216f5659a8022bf45cc319e18a3e0595a2e | |
| parent | 2feaace40e5c3133fea795333402f30929a200d9 (diff) | |
| download | kernel_samsung_smdk4412-89092ddd7aca598e3b8874f7a49216e7917d8f3f.zip kernel_samsung_smdk4412-89092ddd7aca598e3b8874f7a49216e7917d8f3f.tar.gz kernel_samsung_smdk4412-89092ddd7aca598e3b8874f7a49216e7917d8f3f.tar.bz2 | |
HID: fix possible deadlock in usbhid_close()
This patch switches usbhid_close() from flush_scheduled_work() to canceling
the outstanding work. This fixes a possible deadlock due to work taking
the mutex usbhid_close() holds. Lockdep reported the problem.
Signed-off-by: Oliver Neukum <oliver@neukum.org>
--
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| -rw-r--r-- | drivers/hid/usbhid/hid-core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c index 4306cb1..900ce18 100644 --- a/drivers/hid/usbhid/hid-core.c +++ b/drivers/hid/usbhid/hid-core.c @@ -662,8 +662,8 @@ void usbhid_close(struct hid_device *hid) spin_lock_irq(&usbhid->lock); if (!--hid->open) { spin_unlock_irq(&usbhid->lock); + hid_cancel_delayed_stuff(usbhid); usb_kill_urb(usbhid->urbin); - flush_scheduled_work(); usbhid->intf->needs_remote_wakeup = 0; } else { spin_unlock_irq(&usbhid->lock); |