This is a note to let you know that I've just added the patch titled ASoC: max98373-sdw: add missing memory allocation check to the 5.13-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-max98373-sdw-add-missing-memory-allocation-chec.patch and it can be found in the queue-5.13 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 577381a02f4d93eeb2e06f26b5d90ee0c4a645c5 Author: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx> Date: Mon Jun 7 17:22:25 2021 -0500 ASoC: max98373-sdw: add missing memory allocation check [ Upstream commit 468a272ca49cc4e2f58f3c360643c3f6d313c146 ] We forgot to test that devm_kcalloc doesn't return NULL. Fixes: 349dd23931d1 ('ASoC: max98373: don't access volatile registers in bias level off') Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@xxxxxxxxxxxxxxx> Reviewed-by: Bard Liao <bard.liao@xxxxxxxxx> Link: https://lore.kernel.org/r/20210607222239.582139-2-pierre-louis.bossart@xxxxxxxxxxxxxxx Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/sound/soc/codecs/max98373-sdw.c b/sound/soc/codecs/max98373-sdw.c index f3a12205cd48..c7a3506046db 100644 --- a/sound/soc/codecs/max98373-sdw.c +++ b/sound/soc/codecs/max98373-sdw.c @@ -787,6 +787,8 @@ static int max98373_init(struct sdw_slave *slave, struct regmap *regmap) max98373->cache = devm_kcalloc(dev, max98373->cache_num, sizeof(*max98373->cache), GFP_KERNEL); + if (!max98373->cache) + return -ENOMEM; for (i = 0; i < max98373->cache_num; i++) max98373->cache[i].reg = max98373_sdw_cache_reg[i];