ALSA: compress: Make sure we trigger STOP before closing the stream.

Currently we assume that userspace will shut down the compressed stream
correctly. However, if userspcae dies (e.g. cplay & ctrl-C) we dont
stop the stream before freeing it.

This now checks that the stream is stopped before freeing.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
index 5863ba6dd12b7161c6b7dd9bda6a3d6205717320..bea523a5d852e11f9d06e1d682e065b699f347c8 100644 (file)
--- a/sound/core/compress_offload.c
+++ b/sound/core/compress_offload.c
@@ -139,6 +139,18 @@ static int snd_compr_open(struct inode *inode, struct file *f)
 static int snd_compr_free(struct inode *inode, struct file *f)
 {
        struct snd_compr_file *data = f->private_data;
+       struct snd_compr_runtime *runtime = data->stream.runtime;
+
+       switch (runtime->state) {
+       case SNDRV_PCM_STATE_RUNNING:
+       case SNDRV_PCM_STATE_DRAINING:
+       case SNDRV_PCM_STATE_PAUSED:
+               data->stream.ops->trigger(&data->stream, SNDRV_PCM_TRIGGER_STOP);
+               break;
+       default:
+               break;
+       }
+
        data->stream.ops->free(&data->stream);
        kfree(data->stream.runtime->buffer);
        kfree(data->stream.runtime);