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| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2022-11-16 11:25:08 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-12-02 19:41:03 +0300 |
| commit | bd419c7c68bd316c33a0205c54539236c33044fa (patch) | |
| tree | a9f48a7ee188857c15c20083015fc7782440b776 /sound | |
| parent | f9bc4a18e7d53d7e9a00cf9d842f2ccfbb762fb5 (diff) | |
| download | linux-bd419c7c68bd316c33a0205c54539236c33044fa.tar.xz | |
ASoC: max98373: Add checks for devm_kcalloc
[ Upstream commit 60591bbf6d5eb44f275eb733943b7757325c1b60 ]
As the devm_kcalloc may return NULL pointer,
it should be better to check the return value
in order to avoid NULL poineter dereference.
Fixes: 349dd23931d1 ("ASoC: max98373: don't access volatile registers in bias level off")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20221116082508.17418-1-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/max98373-i2c.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/soc/codecs/max98373-i2c.c b/sound/soc/codecs/max98373-i2c.c index ddb6436835d7..68497a4521dd 100644 --- a/sound/soc/codecs/max98373-i2c.c +++ b/sound/soc/codecs/max98373-i2c.c @@ -551,6 +551,10 @@ static int max98373_i2c_probe(struct i2c_client *i2c, max98373->cache = devm_kcalloc(&i2c->dev, max98373->cache_num, sizeof(*max98373->cache), GFP_KERNEL); + if (!max98373->cache) { + ret = -ENOMEM; + return ret; + } for (i = 0; i < max98373->cache_num; i++) max98373->cache[i].reg = max98373_i2c_cache_reg[i]; |