ASoC: dapm: release lock on error paths

We added locking here but there were a couple error paths where we
forgot to drop the lock before returning.

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

sound/soc/soc-dapm.c

@@ -2131,7 +2131,7 @@ err:
 int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm,
 			    const struct snd_soc_dapm_route *route, int num)
 {
-	int i, ret;
+	int i, ret = 0;
 
 	mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT);
 	for (i = 0; i < num; i++) {
@@ -2139,13 +2139,13 @@ int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm,
 		if (ret < 0) {
 			dev_err(dapm->dev, "Failed to add route %s->%s\n",
 				route->source, route->sink);
-			return ret;
+			break;
 		}
 		route++;
 	}
 	mutex_unlock(&dapm->card->dapm_mutex);
 
-	return 0;
+	return ret;
 }
 EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes);
 
@@ -2849,6 +2849,7 @@ int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm,
 {
 	struct snd_soc_dapm_widget *w;
 	int i;
+	int ret = 0;
 
 	mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT);
 	for (i = 0; i < num; i++) {
@@ -2857,12 +2858,13 @@ int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm,
 			dev_err(dapm->dev,
 				"ASoC: Failed to create DAPM control %s\n",
 				widget->name);
-			return -ENOMEM;
+			ret = -ENOMEM;
+			break;
 		}
 		widget++;
 	}
 	mutex_unlock(&dapm->card->dapm_mutex);
-	return 0;
+	return ret;
 }
 EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls);