ASoC: codecs: max98390: Check return value of devm_gpiod_get_optional() in max98390_i2c_probe()

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The devm_gpiod_get_optional() function may return an error pointer
(ERR_PTR) in case of a genuine failure during GPIO acquisition,
not just NULL which indicates the legitimate absence of an optional
GPIO.

Add an IS_ERR() check after the function call to catch such errors and
propagate them to the probe function, ensuring the driver fails to load
safely rather than proceeding with an invalid pointer.

Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Link: https://patch.msgid.link/20260130091904.3426149-1-nichen@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Chen Ni 2026-01-30 17:19:04 +08:00 • committed by Sasha Levin

parent 5a22d4560c

commit ba5d922b31

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sound/soc/codecs/max98390.c

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