Re: [alsa-devel] [PATCH] opl3: Fix a possible sleep-in-atomic bug in snd_opl3_find_patch

From: Clemens Ladisch
Date: Mon Oct 09 2017 - 02:32:54 EST


Jia-Ju Bai wrote:
> The driver may sleep under a spinlock, and the function call path is:
> snd_opl3_note_on (acquire the spinlock)
> snd_opl3_find_patch
> kzalloc(GFP_KERNEL) --> may sleep

This call path is not possible because create_patch is not set.


Regards,
Clemens