[PATCH v2] ALSA: jack: Access input_dev under mutex

[Takashi Iwai]

On Tue, 12 Apr 2022 11:16:28 +0200,
Amadeusz Sławiński wrote:
> 
> It is possible when using ASoC that input_dev is unregistered while
> calling snd_jack_report, which causes NULL pointer dereference.
> In order to prevent this serialize access to input_dev using mutex lock.
> 
> Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski at linux.intel.com>
> ---
> 
> Changes:
> v2:
>  - drop mutex in snd_jack_new
>  - add comment that snd_jack_report() should be called in context where
>    it can sleep

Thanks, applied now.


Takashi