ASoC: dapm: Append "Autodisable" to autodisable widget names

This makes it a little easier to follow what is happening in debugfs.
Additionally is also useful in facilitating work to add autodisable
muxes because the control name is already used for the mux widget and
thus shouldn't be reused for the autodisable widget.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Tested-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/soc-dapm.c

@@ -308,6 +308,8 @@ static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget,
 {
 	struct dapm_kcontrol_data *data;
 	struct soc_mixer_control *mc;
+	const char *name;
+	int ret;
 
 	data = kzalloc(sizeof(*data), GFP_KERNEL);
 	if (!data)
@@ -324,6 +326,13 @@ static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget,
 		if (mc->autodisable) {
 			struct snd_soc_dapm_widget template;
 
+			name = kasprintf(GFP_KERNEL, "%s %s", kcontrol->id.name,
+					 "Autodisable");
+			if (!name) {
+				ret = -ENOMEM;
+				goto err_data;
+			}
+
 			memset(&template, 0, sizeof(template));
 			template.reg = mc->reg;
 			template.mask = (1 << fls(mc->max)) - 1;
@@ -334,15 +343,15 @@ static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget,
 				template.off_val = 0;
 			template.on_val = template.off_val;
 			template.id = snd_soc_dapm_kcontrol;
-			template.name = kcontrol->id.name;
+			template.name = name;
 
 			data->value = template.on_val;
 
 			data->widget = snd_soc_dapm_new_control(widget->dapm,
 				&template);
 			if (!data->widget) {
-				kfree(data);
-				return -ENOMEM;
+				ret = -ENOMEM;
+				goto err_name;
 			}
 		}
 		break;
@@ -353,11 +362,19 @@ static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget,
 	kcontrol->private_data = data;
 
 	return 0;
+
+err_name:
+	kfree(name);
+err_data:
+	kfree(data);
+	return ret;
 }
 
 static void dapm_kcontrol_free(struct snd_kcontrol *kctl)
 {
 	struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl);
+	if (data->widget)
+		kfree(data->widget->name);
 	kfree(data->wlist);
 	kfree(data);
 }