herdd: only add service to list if loaded successfully

services/herdd/main.c

@@ -50,9 +50,9 @@ static int load_services(const char *dir, struct queue *out)
 			printf("failed to load %s (%s)\n",
 			       filepath,
 			       strerror(errno));
+		} else {
+			queue_push_back(out, &s->s_entry);
 		}
-
-		queue_push_back(out, &s->s_entry);
 	}
 
 	closedir(d);