Bluetooth: Audio: Unicast client missing unref on ACL disconnected

The unicast client takes a reference to the ACL, but did
not return the reference when the ACL disconnected, but
rather just reset everything.

Modified to detach the stream, ensuring
a bt_conn_unref on ACL disconnect.

Signed-off-by: Emil Gydesen <[email protected]>

Author: Thalley

subsys/bluetooth/audio/stream.c

@@ -264,10 +264,12 @@ void bt_audio_stream_reset(struct bt_audio_stream *stream)
 
 	BT_DBG("stream %p", stream);
 
-	if (stream == NULL || stream->conn == NULL) {
+	if (stream == NULL) {
 		return;
 	}
 
+	bt_audio_stream_detach(stream);
+
 	err = bt_audio_cig_terminate(stream);
 	if (err != 0) {
 		BT_ERR("Failed to terminate CIG: %d", err);