Unverified Commit 60591bbf authored by 蒋家盛's avatar 蒋家盛 Committed by Mark Brown
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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: 349dd239 ("ASoC: max98373: don't access volatile registers in bias level off")
Signed-off-by: default avatarJiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20221116082508.17418-1-jiasheng@iscas.ac.cn


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent c7d7d4e7

sound/soc/codecs/max98373-i2c.c

+4 −0
Original line number Diff line number Diff line
@@ -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];