Re: [PATCH] ALSA: hda: Fix crash due to jack poll in suspend

[Takashi Iwai]

On Thu, 11 Aug 2022 07:27:04 +0200,
Mohan Kumar wrote:
> 
> With jackpoll_in_suspend flag set, there is a possibility that
> jack poll worker thread will run even after system suspend was
> completed. Any register access after system pm callback flow
> will result in kernel crash as still jack poll worker thread
> tries to access registers.
> 
> To fix the crash issue during system flow, cancel the jack poll
> worker thread during system pm prepare callback and cancel the
> worker thread at start of runtime suspend callback and re-schedule
> at last to avoid any unwarranted access of register by worker thread
> during suspend flow.
> 
> Signed-off-by: Mohan Kumar <mkumard@xxxxxxxxxx>

Thanks, applied now with Fixes tag.


Takashi