ASoC: codecs: Check for error pointer after calling devm_regmap_init_mmio

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Since the potential failure of the devm_regmap_init_mmio(), it will
return error pointer and be assigned to the regmap.
Then the error pointer will be dereferenced.
For example rx->regmap will be used in rx_macro_mclk_enable().
Therefore, it should be better to check it.

Fixes: af3d54b997 ("ASoC: codecs: lpass-rx-macro: add support for lpass rx macro")
Fixes: c39667ddcf ("ASoC: codecs: lpass-tx-macro: add support for lpass tx macro")
Fixes: 809bcbcece ("ASoC: codecs: lpass-wsa-macro: Add support to WSA Macro")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20220121171031.2826198-1-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>

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Jiasheng Jiang 2022-01-22 01:10:31 +08:00 • committed by Mark Brown

parent dbf2f8e3fe

commit aa505ecccf

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sound/soc/codecs/lpass-rx-macro.c

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2

sound/soc/codecs/lpass-tx-macro.c

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2

sound/soc/codecs/lpass-wsa-macro.c

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