core/transaction: make merge_unit_ids() return non-NULL on success

2023-03-18 12:19:44 +09:00
parent 366eced4c8
commit 999f165143
1 changed files with 3 additions and 0 deletions
@@ -341,6 +341,9 @@ static char* merge_unit_ids(const char* unit_log_field, char * const* pairs) {
                size += next + 1;
        }

+        if (!ans)
+                return strdup("");
+
        return TAKE_PTR(ans);
 }