ALSA: compress: fix the states to check for allowing read
for reading compressed data, we need to allow when we are paused, draining or
stopped.
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Cc: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
index a0bc47f..99db892 100644
--- a/sound/core/compress_offload.c
+++ b/sound/core/compress_offload.c
@@ -311,8 +311,16 @@
stream = &data->stream;
mutex_lock(&stream->device->lock);
- /* read is allowed when stream is running */
- if (stream->runtime->state != SNDRV_PCM_STATE_RUNNING) {
+ /* read is allowed when stream is running, paused, draining and setup
+ * (yes setup is state which we transition to after stop, so if user
+ * wants to read data after stop we allow that)
+ */
+ switch (stream->runtime->state) {
+ case SNDRV_PCM_STATE_OPEN:
+ case SNDRV_PCM_STATE_PREPARED:
+ case SNDRV_PCM_STATE_XRUN:
+ case SNDRV_PCM_STATE_SUSPENDED:
+ case SNDRV_PCM_STATE_DISCONNECTED:
retval = -EBADFD;
goto out;
}