[PATCH] ASoC: Intel: bytcr_wm5102: Fix MCLK leak on platform_clock_control error

Cássio Gabriel
2026-04-28T02:38:50Z

If byt_wm5102_prepare_and_enable_pll1() fails in the
SND_SOC_DAPM_EVENT_ON() path, platform_clock_control() returns after
clk_prepare_enable(priv->mclk) without disabling the clock again.

This leaks an MCLK enable reference on failed power-up attempts. Add the
missing clk_disable_unprepare() on the error path, matching the unwind
used by the other Intel platform_clock_control() implementations.

Fixes: 9a87fc1e0619 ("ASoC: Intel: bytcr_wm5102: Add machine driver for BYT/WM5102")
Cc: stable@vger.kernel.org
Signed-off-by: Cássio Gabriel <cassiogabrielcontato@gmail.com>
---
sound/soc/intel/boards/bytcr_wm5102.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/sound/soc/intel/boards/bytcr_wm5102.c b/sound/soc/intel/boards/bytcr_wm5102.c
index 4879f79aef29..4aa0cf49b033 100644
--- a/sound/soc/intel/boards/bytcr_wm5102.c
+++ b/sound/soc/intel/boards/bytcr_wm5102.c
@@ -170,6 +170,7 @@ static int platform_clock_control(struct snd_soc_dapm_widget *w,
ret = byt_wm5102_prepare_and_enable_pll1(codec_dai, 48000);
if (ret) {
dev_err(card->dev, "Error setting codec sysclk: %d\n", ret);
+ clk_disable_unprepare(priv->mclk);
return ret;
}
} else {

---
base-commit: 98421d94a1a6dcc3e8582eb62bedeccecda93339
change-id: 20260427-bytcr-wm5102-mclk-leak-88016072a63c

Best regards,
--
Cássio Gabriel <cassiogabrielcontato@gmail.com>