@@ -1115,6 +1115,12 @@ const char *get_link(struct nameidata *nd)
int error;
const char *res;
+ if (!(nd->flags & LOOKUP_PARENT)) {
+ error = may_follow_link(nd);
+ if (unlikely(error))
+ return ERR_PTR(error);
+ }
+
if (unlikely(nd->flags & LOOKUP_NO_SYMLINKS))
return ERR_PTR(-ELOOP);
@@ -2329,13 +2335,9 @@ static const char *path_init(struct nameidata *nd, unsigned flags)
static const char *trailing_symlink(struct nameidata *nd)
{
- const char *s;
- int error = may_follow_link(nd);
- if (unlikely(error))
- return ERR_PTR(error);
+ const char *s = get_link(nd);
nd->flags |= LOOKUP_PARENT;
nd->stack[0].name = NULL;
- s = get_link(nd);
return s ? s : "";
}