Commit 75481347 authored by Vinod Koul's avatar Vinod Koul Committed by Takashi Iwai

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: default avatarVinod Koul <vinod.koul@intel.com>
Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Cc: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Reviewed-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent a555bb8c
......@@ -311,8 +311,16 @@ static ssize_t snd_compr_read(struct file *f, char __user *buf,
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;
}
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment