Currently, in method_list_games (`ListGames` on the bus), when sd_bus_message_append fails, we break the loop but then we were not reporting the error (contained in r) back to call.
@@ -257,7 +257,7 @@ static int method_list_games(sd_bus_message *m, void *userdata,
free(clients);
if (r < 0)
- return 0;
+ return r;
r = sd_bus_message_close_container(reply);