[alsa-devel] [PATCH 2/4] ASoC: wm8904: Check for clk_prepare_enable() error

[Fabio Estevam]

From: Fabio Estevam <fabio.estevam at freescale.com>

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 at freescale.com>
---
 sound/soc/codecs/wm8904.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c
index 265a4a5..07dc400 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:
-- 
1.9.1