Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck...

[cascardo/linux.git] / sound / soc / soc-dapm.c

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 8698c26..d908ff8 100644 (file)
--- 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;
 }