1 files changed, 18 insertions, 0 deletions

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 5a4376b41926..5c01ac1cfc0a 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -115,6 +115,12 @@ static int dapm_down_seq[] = {
         [snd_soc_dapm_post] = 14,
 };
 
+static void dapm_assert_locked(struct snd_soc_dapm_context *dapm)
+{
+        if (dapm->card && dapm->card->instantiated)
+                lockdep_assert_held(&dapm->card->dapm_mutex);
+}
+
 static void pop_wait(u32 pop_time)
 {
         if (pop_time)
@@ -148,6 +154,8 @@ static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w)
 
 static void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason)
 {
+        dapm_assert_locked(w->dapm);
+
         if (!dapm_dirty_widget(w)) {
                 dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n",
                          w->name, reason);
@@ -360,6 +368,8 @@ static void dapm_reset(struct snd_soc_card *card)
 {
         struct snd_soc_dapm_widget *w;
 
+        lockdep_assert_held(&card->dapm_mutex);
+
         memset(&card->dapm_stats, 0, sizeof(card->dapm_stats));
 
         list_for_each_entry(w, &card->widgets, list) {
@@ -1823,6 +1833,8 @@ static int dapm_power_widgets(struct snd_soc_card *card, int event)
         ASYNC_DOMAIN_EXCLUSIVE(async_domain);
         enum snd_soc_bias_level bias;
 
+        lockdep_assert_held(&card->dapm_mutex);
+
         trace_snd_soc_dapm_start(card);
 
         list_for_each_entry(d, &card->dapm_list, list) {
@@ -2118,6 +2130,8 @@ static int soc_dapm_mux_update_power(struct snd_soc_card *card,
         struct snd_soc_dapm_path *path;
         int found = 0;
 
+        lockdep_assert_held(&card->dapm_mutex);
+
         /* find dapm widget path assoc with kcontrol */
         dapm_kcontrol_for_each_path(path, kcontrol) {
                 if (!path->name || !e->texts[mux])
@@ -2168,6 +2182,8 @@ static int soc_dapm_mixer_update_power(struct snd_soc_card *card,
         struct snd_soc_dapm_path *path;
         int found = 0;
 
+        lockdep_assert_held(&card->dapm_mutex);
+
         /* find dapm widget path assoc with kcontrol */
         dapm_kcontrol_for_each_path(path, kcontrol) {
                 found = 1;
@@ -2333,6 +2349,8 @@ static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm,
 {
         struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true);
 
+        dapm_assert_locked(dapm);
+
         if (!w) {
                 dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin);
                 return -EINVAL;