setup: free old value before setting work_tree

Before assigning to `data->work_tree` in `read_worktree_config()`, free any value we might already have picked up, so that we do not leak it. Signed-off-by: Martin Ågren <[email protected]> Signed-off-by: Junio C Hamano <[email protected]>
xu-kai-xu · Jan 23, 2019 · 1301997 · 1301997
1 parent ecbdaf0
commit 1301997
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/setup.c b/setup.c
@@ -411,6 +411,7 @@ static int read_worktree_config(const char *var, const char *value, void *vdata)
 	} else if (strcmp(var, "core.worktree") == 0) {
 		if (!value)
 			return config_error_nonbool(var);
+		free(data->work_tree);
 		data->work_tree = xstrdup(value);
 	}
 	return 0;