ASoC: Ux500: unlock on an error path

There is a missing mutex_unlock() here.  The cleanup path also has more
debug output.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/ab8500-codec.c

@@ -1235,7 +1235,8 @@ static int anc_status_control_put(struct snd_kcontrol *kcontrol,
 		req != ANC_APPLY_IIR) {
 		dev_err(dev, "%s: ERROR: Unsupported status to set '%s'!\n",
 			__func__, enum_anc_state[req]);
-		return -EINVAL;
+		status = -EINVAL;
+		goto cleanup;
 	}
 	apply_fir = req == ANC_APPLY_FIR || req == ANC_APPLY_FIR_IIR;
 	apply_iir = req == ANC_APPLY_IIR || req == ANC_APPLY_FIR_IIR;