1 files changed, 35 insertions, 12 deletions

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 7a61b5cc2d4f..68acec667242 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -707,14 +707,33 @@ static int dapm_new_pga(struct snd_soc_dapm_widget *w)
 }
 
 /* reset 'walked' bit for each dapm path */
-static inline void dapm_clear_walk(struct snd_soc_dapm_context *dapm)
+static void dapm_clear_walk_output(struct snd_soc_dapm_context *dapm,
+				   struct list_head *sink)
 {
 	struct snd_soc_dapm_path *p;
 
-	list_for_each_entry(p, &dapm->card->paths, list)
-		p->walked = 0;
+	list_for_each_entry(p, sink, list_source) {
+		if (p->walked) {
+			p->walked = 0;
+			dapm_clear_walk_output(dapm, &p->sink->sinks);
+		}
+	}
+}
+
+static void dapm_clear_walk_input(struct snd_soc_dapm_context *dapm,
+				  struct list_head *source)
+{
+	struct snd_soc_dapm_path *p;
+
+	list_for_each_entry(p, source, list_sink) {
+		if (p->walked) {
+			p->walked = 0;
+			dapm_clear_walk_input(dapm, &p->source->sources);
+		}
+	}
 }
 
+
 /* We implement power down on suspend by checking the power state of
  * the ALSA card - when we are suspending the ALSA state for the card
  * is set to D3.
@@ -983,13 +1002,17 @@ int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream,
 	mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
 	dapm_reset(card);
 
-	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
+	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
 		paths = is_connected_output_ep(dai->playback_widget, list);
-	else
+		dapm_clear_walk_output(&card->dapm,
+				       &dai->playback_widget->sinks);
+	} else {
 		paths = is_connected_input_ep(dai->capture_widget, list);
+		dapm_clear_walk_input(&card->dapm,
+				      &dai->capture_widget->sources);
+	}
 
 	trace_snd_soc_dapm_connected(paths, stream);
-	dapm_clear_walk(&card->dapm);
 	mutex_unlock(&card->dapm_mutex);
 
 	return paths;
@@ -1092,9 +1115,9 @@ static int dapm_generic_check_power(struct snd_soc_dapm_widget *w)
 	DAPM_UPDATE_STAT(w, power_checks);
 
 	in = is_connected_input_ep(w, NULL);
-	dapm_clear_walk(w->dapm);
+	dapm_clear_walk_input(w->dapm, &w->sources);
 	out = is_connected_output_ep(w, NULL);
-	dapm_clear_walk(w->dapm);
+	dapm_clear_walk_output(w->dapm, &w->sinks);
 	return out != 0 && in != 0;
 }
 
@@ -1117,7 +1140,7 @@ static int dapm_adc_check_power(struct snd_soc_dapm_widget *w)
 
 	if (w->active) {
 		in = is_connected_input_ep(w, NULL);
-		dapm_clear_walk(w->dapm);
+		dapm_clear_walk_input(w->dapm, &w->sources);
 		return in != 0;
 	} else {
 		return dapm_generic_check_power(w);
@@ -1133,7 +1156,7 @@ static int dapm_dac_check_power(struct snd_soc_dapm_widget *w)
 
 	if (w->active) {
 		out = is_connected_output_ep(w, NULL);
-		dapm_clear_walk(w->dapm);
+		dapm_clear_walk_output(w->dapm, &w->sinks);
 		return out != 0;
 	} else {
 		return dapm_generic_check_power(w);
@@ -1745,9 +1768,9 @@ static ssize_t dapm_widget_power_read_file(struct file *file,
 		return -ENOMEM;
 
 	in = is_connected_input_ep(w, NULL);
-	dapm_clear_walk(w->dapm);
+	dapm_clear_walk_input(w->dapm, &w->sources);
 	out = is_connected_output_ep(w, NULL);
-	dapm_clear_walk(w->dapm);
+	dapm_clear_walk_output(w->dapm, &w->sinks);
 
 	ret = snprintf(buf, PAGE_SIZE, "%s: %s%s  in %d out %d",
 		       w->name, w->power ? "On" : "Off",