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

9 Oct 2017


      Thanks for your reply :)
Yes, you are right. Sorry for this false positive.
Thanks,
Jia-Ju Bai
On 2017/10/9 14:32, Clemens Ladisch wrote:
...
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