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[next] ASoC: mediatek: mt8188: Fix uninitialized variable msk

Message ID 20250226161847.567160-1-colin.i.king@gmail.com (mailing list archive)
State New
Headers show
Series [next] ASoC: mediatek: mt8188: Fix uninitialized variable msk | expand

Commit Message

Colin Ian King Feb. 26, 2025, 4:18 p.m. UTC 
The variable msk not initialized and is being bit-wise or'd with values
in a for-loop, leading to an undefined result. Fix this by initializing
msk to zero before the for-loop.

Fixes: c1e42ec04197 ("ASoC: mediatek: mt8188: Add support for DMIC")
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
---
 sound/soc/mediatek/mt8188/mt8188-dai-dmic.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/sound/soc/mediatek/mt8188/mt8188-dai-dmic.c b/sound/soc/mediatek/mt8188/mt8188-dai-dmic.c
index 4cfbcb71d2d9..adcea7818be2 100644
--- a/sound/soc/mediatek/mt8188/mt8188-dai-dmic.c
+++ b/sound/soc/mediatek/mt8188/mt8188-dai-dmic.c
@@ -307,6 +307,7 @@  static int mtk_dmic_event(struct snd_soc_dapm_widget *w,
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
 		/* request fifo soft rst */
+		msk = 0;
 		for (i = dmic_num; i >= DMIC0; i--)
 			msk |= PWR2_TOP_CON1_DMIC_FIFO_SOFT_RST_EN(i);