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ASoC: codecs: wsa-macro: fix uninitialized stack variables with name prefix 

commit 72151ad0cb upstream.

Driver compares widget name in wsa_macro_spk_boost_event() widget event
callback, however it does not handle component's name prefix.  This
leads to using uninitialized stack variables as registers and register
values.  Handle gracefully such case.

Fixes: 2c4066e5d4 ("ASoC: codecs: lpass-wsa-macro: add dapm widgets and route")
Cc: stable@vger.kernel.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231003155422.801160-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Krzysztof Kozlowski 2023-10-03 17:54:22 +02:00 committed by Greg Kroah-Hartman
parent 19ed109e1a
commit e0fe122487
1 changed files with 3 additions and 0 deletions
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3
sound/soc/codecs/lpass-wsa-macro.c
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@ -1685,6 +1685,9 @@ static int wsa_macro_spk_boost_event(struct snd_soc_dapm_widget *w,
boost_path_cfg1 = CDC_WSA_RX1_RX_PATH_CFG1;
reg = CDC_WSA_RX1_RX_PATH_CTL;
reg_mix = CDC_WSA_RX1_RX_PATH_MIX_CTL;
} else {
dev_warn(component->dev, "Incorrect widget name in the driver\n");
return -EINVAL;
}
switch (event) {