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ASoC: max98373: Add checks for devm_kcalloc
[ Upstream commit60591bbf6d
] 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:349dd23931
("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>
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@ -549,6 +549,10 @@ static int max98373_i2c_probe(struct i2c_client *i2c)
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max98373->cache = devm_kcalloc(&i2c->dev, max98373->cache_num,
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sizeof(*max98373->cache),
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GFP_KERNEL);
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if (!max98373->cache) {
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ret = -ENOMEM;
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return ret;
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}
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for (i = 0; i < max98373->cache_num; i++)
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max98373->cache[i].reg = max98373_i2c_cache_reg[i];
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