MT#56447 switch to early return

... for betterer code. Functional no-op.

Change-Id: I052255ef1a6a6907ef6f232f5c9d68099a86572e

daemon/janus.c

@@ -720,7 +720,9 @@ static const char *janus_videoroom_configure(struct websocket_message *wm, struc
 
 	AUTO_CLEANUP(str sdp_out, str_free_dup) = STR_NULL;
 	ret = sdp_create(&sdp_out, ml, &flags);
-	if (!ret) {
+	if (ret)
+		return "Publish error";
+
 	save_last_sdp(ml, &sdp_in, &parsed, &streams);
 	*jsep_sdp_out = sdp_out;
 	sdp_out = STR_NULL; // ownership passed to output
@@ -791,7 +793,6 @@ static const char *janus_videoroom_configure(struct websocket_message *wm, struc
 		json_builder_add_null_value(builder);
 
 	janus_notify_publishers(wm, room_id, handle->id);
-	}
 
 	return NULL;
 }