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>

1 files changed, 3 insertions, 1 deletions

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: