ASoC: wm8904: Use WARN_ON() instead of BUG_ON()

Use WARN_ON() and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c
index 4dfa8dceeabf..c173ab3cd18a 100644
--- a/sound/soc/codecs/wm8904.c
+++ b/sound/soc/codecs/wm8904.c
@@ -658,7 +658,8 @@ SOC_SINGLE_TLV("EQ5 Volume", WM8904_EQ6, 0, 24, 0, eq_tlv),
 static int cp_event(struct snd_soc_dapm_widget *w,
                     struct snd_kcontrol *kcontrol, int event)
 {
-        BUG_ON(event != SND_SOC_DAPM_POST_PMU);
+        if (WARN_ON(event != SND_SOC_DAPM_POST_PMU))
+                return -EINVAL;
 
         /* Maximum startup time */
         udelay(500);