This is a note to let you know that I've just added the patch titled
ASoC: soc-pcm: use GFP_ATOMIC for dpcm structure
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
asoc-soc-pcm-use-gfp_atomic-for-dpcm-structure.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 364f2950d8dca8f867a74364e455c85076df19d1
Author: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Date: Tue Dec 7 11:37:40 2021 -0600
ASoC: soc-pcm: use GFP_ATOMIC for dpcm structure
[ Upstream commit d8a9c6e1f6766a16cf02b4e99a629f3c5512c183 ]
We allocate a structure in dpcm_be_connect(), which may be called in
atomic context. Using GFP_KERNEL is not quite right, we have to use
GFP_ATOMIC to prevent the allocator from sleeping.
Suggested-by: Guennadi Liakhovetski <guennadi.liakhovetski@xxxxxxxxxxxxxxx>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Reviewed-by: Kai Vehmanen <kai.vehmanen@xxxxxxxxxxxxxxx>
Reviewed-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20211207173745.15850-2-pierre-louis.bossart@xxxxxxxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 6f616ac4490f0..a2b20526e7e2b 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1132,7 +1132,7 @@ static int dpcm_be_connect(struct snd_soc_pcm_runtime *fe,
return 0;
}
- dpcm = kzalloc(sizeof(struct snd_soc_dpcm), GFP_KERNEL);
+ dpcm = kzalloc(sizeof(struct snd_soc_dpcm), GFP_ATOMIC);
if (!dpcm)
return -ENOMEM;
