linux-kernel - [PATCH -next] ASoC: atmel-pdmic: add missing clk_disable_unprepare() on error in atmel_pdmic_cpu_dai

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Message-Id: <1470837201-12232-1-git-send-email-weiyj.lk@gmail.com>
Date:	Wed, 10 Aug 2016 13:53:21 +0000
From:	Wei Yongjun <weiyj.lk@...il.com>
To:	Nicolas Ferre <nicolas.ferre@...el.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
Cc:	Wei Yongjun <weiyj.lk@...il.com>, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH -next] ASoC: atmel-pdmic: add missing clk_disable_unprepare() on error in atmel_pdmic_cpu_dai_startup()

Add the missing clk_disable_unprepare() before return from
atmel_pdmic_cpu_dai_startup() in the error handling case.

Signed-off-by: Wei Yongjun <weiyj.lk@...il.com>
---
 sound/soc/atmel/atmel-pdmic.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/soc/atmel/atmel-pdmic.c b/sound/soc/atmel/atmel-pdmic.c
index 2a3a41f..a67e31b 100644
--- a/sound/soc/atmel/atmel-pdmic.c
+++ b/sound/soc/atmel/atmel-pdmic.c
@@ -115,8 +115,10 @@ static int atmel_pdmic_cpu_dai_startup(struct snd_pcm_substream *substream,
 		return ret;
 
 	ret =  clk_prepare_enable(dd->pclk);
-	if (ret)
+	if (ret) {
+		clk_disable_unprepare(dd->gclk);
 		return ret;
+	}
 
 	/* Clear all bits in the Control Register(PDMIC_CR) */
 	regmap_write(dd->regmap, PDMIC_CR, 0);