[PATCH v2 11/13] ASoC: mediatek: mt8189: Validate sysclk frequency
From: <hidden>
Date: 2026-09-14 07:30:11
Also in:
linux-mediatek, linux-sound, lkml
Subsystem:
sound, sound - soc layer / dynamic audio power management (asoc), the rest · Maintainers:
Jaroslav Kysela, Takashi Iwai, Liam Girdwood, Mark Brown, Linus Torvalds
From: bui duc phuc <redacted>
A zero frequency causes a modulo-by-zero error when validating the
I2S clock frequency. Reject it before performing the validation.
Fixes: 7eb153585598 ("ASoC: mediatek: mt8189: add platform driver")
Signed-off-by: bui duc phuc <redacted>
---
Changes in v2:
- Check for zero frequency since freq is unsigned.
sound/soc/mediatek/mt8189/mt8189-dai-i2s.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/sound/soc/mediatek/mt8189/mt8189-dai-i2s.c b/sound/soc/mediatek/mt8189/mt8189-dai-i2s.c
index f20dbb410223..2202fed63fc9 100644
--- a/sound/soc/mediatek/mt8189/mt8189-dai-i2s.c
+++ b/sound/soc/mediatek/mt8189/mt8189-dai-i2s.c@@ -1286,6 +1286,9 @@ static int mtk_dai_i2s_set_sysclk(struct snd_soc_dai *dai, dir != SND_SOC_CLOCK_OUT) return -EINVAL; + if (!freq) + return -EINVAL; + i2s_priv = afe_priv->dai_priv[dai->id]; if (!i2s_priv) return -EINVAL;
--
2.43.0