4.16-stable review patch. If anyone has any objections, please let me know.
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From: Sean Young sean@mess.org
commit 8d4068810d9926250dd2435719a080b889eb44c3 upstream.
If there is IR in the raw kfifo when ir_raw_event_unregister() is called, then kthread_stop() causes ir_raw_event_thread to be scheduled, decode some scancodes and re-arm timer_keyup. The timer_keyup then fires when the rc device is long gone.
Cc: stable@vger.kernel.org Signed-off-by: Sean Young sean@mess.org Signed-off-by: Mauro Carvalho Chehab mchehab@s-opensource.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/media/rc/rc-main.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/media/rc/rc-main.c +++ b/drivers/media/rc/rc-main.c @@ -1929,12 +1929,12 @@ void rc_unregister_device(struct rc_dev if (!dev) return;
- del_timer_sync(&dev->timer_keyup); - del_timer_sync(&dev->timer_repeat); - if (dev->driver_type == RC_DRIVER_IR_RAW) ir_raw_event_unregister(dev);
+ del_timer_sync(&dev->timer_keyup); + del_timer_sync(&dev->timer_repeat); + rc_free_rx_device(dev);
mutex_lock(&dev->lock);