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| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2022-11-16 11:25:08 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-11-16 13:50:12 +0300 |
| commit | 60591bbf6d5eb44f275eb733943b7757325c1b60 (patch) | |
| tree | 5fd816da28a3b6266b60ffd285b2f305a4b0b9cb /sound/soc/codecs/max98373-i2c.c | |
| parent | c7d7d4e7bb1290cc473610b0bb96d9fa606d00e7 (diff) | |
| download | linux-60591bbf6d5eb44f275eb733943b7757325c1b60.tar.xz | |
ASoC: max98373: Add checks for devm_kcalloc
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>
Diffstat (limited to 'sound/soc/codecs/max98373-i2c.c')
| -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 3e04c7f0cce4..ec0905df65d1 100644 --- a/sound/soc/codecs/max98373-i2c.c +++ b/sound/soc/codecs/max98373-i2c.c @@ -549,6 +549,10 @@ 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]; |