ALSA: compress_core: cleanup pointers on stop

as the start can be called after stop again, we need to reset state

Signed-off-by: Namarta Kohli <namartax.kohli@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@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 375f7a0..ec2118d 100644
--- a/sound/core/compress_offload.c
+++ b/sound/core/compress_offload.c
@@ -542,6 +542,10 @@
 	if (!retval) {
 		stream->runtime->state = SNDRV_PCM_STATE_SETUP;
 		wake_up(&stream->runtime->sleep);
+		stream->runtime->hw_pointer = 0;
+		stream->runtime->app_pointer = 0;
+		stream->runtime->total_bytes_available = 0;
+		stream->runtime->total_bytes_transferred = 0;
 	}
 	return retval;
 }