ASoC: dapm: Don't create routes when creating kcontrols

Attempting to create the route as part of adding a mux control causes us
to attempt to add the same route twice since we loop over all sources
for the mux after creating the control. Instead do the addition in the
callers.
Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>

sound/soc/soc-dapm.c

@@ -665,7 +665,7 @@ static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm,
  * create it. Either way, add the widget into the control's widget list
  */
 static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w,
-	int kci, struct snd_soc_dapm_path *path)
+	int kci)
 {
 	struct snd_soc_dapm_context *dapm = w->dapm;
 	struct snd_card *card = dapm->card->snd_card;
@@ -766,7 +766,6 @@ static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w,
 		return ret;
 
 	w->kcontrols[kci] = kcontrol;
-	dapm_kcontrol_add_path(kcontrol, path);
 
 	return 0;
 }
@@ -790,9 +789,11 @@ static int dapm_new_mixer(struct snd_soc_dapm_widget *w)
 				continue;
 			}
 
-			ret = dapm_create_or_share_mixmux_kcontrol(w, i, path);
+			ret = dapm_create_or_share_mixmux_kcontrol(w, i);
 			if (ret < 0)
 				return ret;
+
+			dapm_kcontrol_add_path(w->kcontrols[i], path);
 		}
 	}
 
@@ -818,10 +819,7 @@ static int dapm_new_mux(struct snd_soc_dapm_widget *w)
 		return -EINVAL;
 	}
 
-	path = list_first_entry(&w->sources, struct snd_soc_dapm_path,
-				list_sink);
-
-	ret = dapm_create_or_share_mixmux_kcontrol(w, 0, path);
+	ret = dapm_create_or_share_mixmux_kcontrol(w, 0);
 	if (ret < 0)
 		return ret;