4.16-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sean Young <sean@xxxxxxxx> 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@xxxxxxxxxxxxxxx Signed-off-by: Sean Young <sean@xxxxxxxx> Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- 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);