[PATCH v3 1/3] ASoC: Intel: bytcr_rt5640: Fix MCLK leak on platform_clock_control error

[aravindanilraj0702@gmail.com]

From: Aravind Anilraj <aravindanilraj0702@gmail.com>

If byt_rt5640_prepare_and_enable_pll1() fails, the function returns
without calling clk_disable_unprepare() on priv->mclk, which was
already enabled earlier in the same code path. Add the missing
clk_disable_unprepare() call before returning the error.

Signed-off-by: Aravind Anilraj <aravindanilraj0702@gmail.com>
---
 sound/soc/intel/boards/bytcr_rt5640.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c
index 103e0b445603..fce726a9c8c0 100644
--- a/sound/soc/intel/boards/bytcr_rt5640.c
+++ b/sound/soc/intel/boards/bytcr_rt5640.c
@@ -304,6 +304,8 @@ static int platform_clock_control(struct snd_soc_dapm_widget *w,
 
 	if (ret < 0) {
 		dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
+		if (SND_SOC_DAPM_EVENT_ON(event))
+			clk_disable_unprepare(priv->mclk);
 		return ret;
 	}
 
-- 
2.47.3