Remove rendundant snd_compress_wait_for_drain.

This removes the version of the function from the squashed Edison patch,
leaving behind the linux-stable.

diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
index 8dc970b..3918320 100644 (file)
--- a/sound/core/compress_offload.c
+++ b/sound/core/compress_offload.c
@@ -703,27 +703,6 @@ EXPORT_SYMBOL(snd_compr_stop);
 
 static int snd_compress_wait_for_drain(struct snd_compr_stream *stream)
 {
-       /*
-        * We are called with lock held. So drop the lock while we wait for
-        * drain complete notfication from the driver
-        *
-        * It is expected that driver will notify the drain completion and then
-        * stream will be moved to SETUP state, even if draining resulted in an
-        * error. We can trigger next track after this.
-        */
-       stream->runtime->state = SNDRV_PCM_STATE_DRAINING;
-       mutex_unlock(&stream->device->lock);
-
-       wait_event(stream->runtime->wait, stream->runtime->drain_wake);
-
-       wake_up(&stream->runtime->sleep);
-       mutex_lock(&stream->device->lock);
-
-       return 0;
-}
-
-static int snd_compress_wait_for_drain(struct snd_compr_stream *stream)
-{
        int ret;
 
        /*