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

Jia-Ju Bai baijiaju1990 at 163.com
Mon Oct 9 09:51:36 CEST 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




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