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HID: usbhid: cancel timer for retry synchronously

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This makes sure IO is never restarted while a reset is going on

In particular there seems to be no protection from hid_retry_timeout() calling
hid_start_in() which would start IO after hid_pre_reset() has already called
hid_cease_io() because that uses del_timer(), not del_timer_sync()

Signed-off-by: Oliver Neukum <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
This commit is contained in:
Oliver Neukum 2011-10-13 18:21:58 +02:00 • committed by Jiri Kosina
commit fad9fbe865
1 changed files with 1 additions and 1 deletions
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2
drivers/hid/usbhid/hid-core.c
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@ -1270,7 +1270,7 @@ static void hid_cancel_delayed_stuff(struct usbhid_device *usbhid)
static void hid_cease_io(struct usbhid_device *usbhid)
{
del_timer(&usbhid->io_retry);
del_timer_sync(&usbhid->io_retry);
usb_kill_urb(usbhid->urbin);
usb_kill_urb(usbhid->urbctrl);
usb_kill_urb(usbhid->urbout);