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 f22935a36a0a9e16bfb19b335231b830b3431f28..628d50c40cc4d5a48978edf5b259e9f7278a61d3 100644 (file)
--- 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;