ALSA: hrtimer - Fix lock-up
The timer stop callback can be called from snd_timer_interrupt(), which is called from the hrtimer callback. Since hrtimer_cancel() waits for the callback completion, this eventually results in a lock-up. This patch fixes the problem by just toggling a flag at stop callback and call hrtimer_cancel() later. Reported-and-tested-by:Wojtek Zabolotny <W.Zabolotny@elka.pw.edu.pl> Cc: <stable@kernel.org> Signed-off-by:
Takashi Iwai <tiwai@suse.de>
parent
5f60e496
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