Merge remote-tracking branch 'asoc/fix/dapm' into asoc-linus

1 files changed, 10 insertions, 0 deletions

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 8698c26773b3..d908ff8f9755 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -3493,6 +3493,7 @@ static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w,
         const struct snd_soc_pcm_stream *config = w->params + w->params_select;
         struct snd_pcm_substream substream;
         struct snd_pcm_hw_params *params = NULL;
+        struct snd_pcm_runtime *runtime = NULL;
         u64 fmt;
         int ret;
 
@@ -3541,6 +3542,14 @@ static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w,
 
         memset(&substream, 0, sizeof(substream));
 
+        /* Allocate a dummy snd_pcm_runtime for startup() and other ops() */
+        runtime = kzalloc(sizeof(*runtime), GFP_KERNEL);
+        if (!runtime) {
+                ret = -ENOMEM;
+                goto out;
+        }
+        substream.runtime = runtime;
+
         switch (event) {
         case SND_SOC_DAPM_PRE_PMU:
                 substream.stream = SNDRV_PCM_STREAM_CAPTURE;
@@ -3606,6 +3615,7 @@ static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w,
         }
 
 out:
+        kfree(runtime);
         kfree(params);
         return ret;
 }