Merge branch 'pm-tools'

[mirror_ubuntu-focal-kernel.git] / sound / core / pcm_native.c

diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index f731f904e8ccb4e9671523e3b68e7825c779d8d8..1d8452912b14af7b211acc8796d1526d936007a2 100644 (file)
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -1445,8 +1445,15 @@ static int snd_pcm_pause(struct snd_pcm_substream *substream, int push)
 static int snd_pcm_pre_suspend(struct snd_pcm_substream *substream, int state)
 {
        struct snd_pcm_runtime *runtime = substream->runtime;
-       if (runtime->status->state == SNDRV_PCM_STATE_SUSPENDED)
+       switch (runtime->status->state) {
+       case SNDRV_PCM_STATE_SUSPENDED:
                return -EBUSY;
+       /* unresumable PCM state; return -EBUSY for skipping suspend */
+       case SNDRV_PCM_STATE_OPEN:
+       case SNDRV_PCM_STATE_SETUP:
+       case SNDRV_PCM_STATE_DISCONNECTED:
+               return -EBUSY;
+       }
        runtime->trigger_master = substream;
        return 0;
 }