From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Sat, 20 Jun 2015 18:55:52 +0000 (-0300)
Subject: ASoC: wm8731: Check for clk_prepare_enable() error
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=cef6daa919c6912c4da629c3cee9c789f90583b1;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

ASoC: wm8731: Check for clk_prepare_enable() error

clk_prepare_enable() may fail, so we should better check its return value
and propagate it in the case of error.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/sound/soc/codecs/wm8731.c b/sound/soc/codecs/wm8731.c
index f22935a36a0a..628d50c40cc4 100644
--- a/sound/soc/codecs/wm8731.c
+++ b/sound/soc/codecs/wm8731.c
@@ -496,8 +496,11 @@ static int wm8731_set_bias_level(struct snd_soc_codec *codec,
 
 	switch (level) {
 	case SND_SOC_BIAS_ON:
-		if (wm8731->mclk)
-			clk_prepare_enable(wm8731->mclk);
+		if (wm8731->mclk) {
+			ret = clk_prepare_enable(wm8731->mclk);
+			if (ret)
+				return ret;
+		}
 		break;
 	case SND_SOC_BIAS_PREPARE:
 		break;