ALSA: compress: allow writes in SNDRV_PCM_STATE_PREPARED state

Allow writes in SNDRV_PCM_STATE_PREPARED state so that more
than one buffer fragment can be written from user space
before calling SNDRV_COMPRESS_START.

Signed-off-by: Eric Laurent <elaurent@google.com>
Acked-by: Vinod Koul <vinod.koul@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 7fac3ca..9e7c2f0 100644 (file)
--- a/sound/core/compress_offload.c
+++ b/sound/core/compress_offload.c
@@ -286,6 +286,7 @@ static ssize_t snd_compr_write(struct file *f, const char __user *buf,
        mutex_lock(&stream->device->lock);
        /* write is allowed when stream is running or has been steup */
        if (stream->runtime->state != SNDRV_PCM_STATE_SETUP &&
+           stream->runtime->state != SNDRV_PCM_STATE_PREPARED &&
                        stream->runtime->state != SNDRV_PCM_STATE_RUNNING) {
                mutex_unlock(&stream->device->lock);
                return -EBADFD;