ALSA: hdac: Fix to check if stream not in use in release

if the stream is decoupled and both link and host are used, while
releasing the stream, need to check if link and host stream are
not in use. This patch adds fix to check if the host/link stream
is in used before coupling it back when releasing the stream.

Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/hda/ext/hdac_ext_stream.c b/sound/hda/ext/hdac_ext_stream.c
index 4bcebc8..cb89ec7 100644
--- a/sound/hda/ext/hdac_ext_stream.c
+++ b/sound/hda/ext/hdac_ext_stream.c
@@ -385,14 +385,13 @@
 		break;
 
 	case HDAC_EXT_STREAM_TYPE_HOST:
-		if (stream->decoupled) {
+		if (stream->decoupled && !stream->link_locked)
 			snd_hdac_ext_stream_decouple(ebus, stream, false);
-			snd_hdac_stream_release(&stream->hstream);
-		}
+		snd_hdac_stream_release(&stream->hstream);
 		break;
 
 	case HDAC_EXT_STREAM_TYPE_LINK:
-		if (stream->decoupled)
+		if (stream->decoupled && !stream->hstream.opened)
 			snd_hdac_ext_stream_decouple(ebus, stream, false);
 		spin_lock_irq(&bus->reg_lock);
 		stream->link_locked = 0;