From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Sat, 20 Jun 2015 18:55:51 +0000 (-0300)
Subject: ASoC: wm8904: Check for clk_prepare_enable() error
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=779ea47399bae5d9418451f5283a3b2e35869627;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

ASoC: wm8904: 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/wm8904.c b/sound/soc/codecs/wm8904.c
index 265a4a58a2d1..07dc40022d4f 100644
--- a/sound/soc/codecs/wm8904.c
+++ b/sound/soc/codecs/wm8904.c
@@ -1837,7 +1837,9 @@ static int wm8904_set_bias_level(struct snd_soc_codec *codec,
 
 	switch (level) {
 	case SND_SOC_BIAS_ON:
-		clk_prepare_enable(wm8904->mclk);
+		ret = clk_prepare_enable(wm8904->mclk);
+		if (ret)
+			return ret;
 		break;
 
 	case SND_SOC_BIAS_PREPARE: