playlist_queue: simplify error handler

src/playlist_queue.c

@@ -103,7 +103,9 @@ playlist_open_into_queue(const char *uri, struct playlist *dest)
 
 	struct input_stream *is;
 	struct playlist_provider *playlist = playlist_mapper_open(uri, &is);
-	if (playlist != NULL) {
+	if (playlist == NULL)
+		return PLAYLIST_RESULT_NO_SUCH_LIST;
+
 	enum playlist_result result =
 		playlist_load_into_queue(uri, playlist, dest);
 	playlist_plugin_close(playlist);
@@ -112,7 +114,4 @@ playlist_open_into_queue(const char *uri, struct playlist *dest)
 		input_stream_close(is);
 
 	return result;
-	}
-
-	return PLAYLIST_RESULT_NO_SUCH_LIST;
 }