ovl: add WARN_ON() for non-dir redirect cases (3a291774) · Commits · e / devices / android_kernel_xiaomi_nabu

fs/overlayfs/namei.c

+11 −0

Original line number	Diff line number	Diff line
		@@ -256,6 +256,12 @@ static int ovl_lookup_single(struct dentry base, struct ovl_lookup_data d,
		d->stop = true;
		if (d->is_dir)
		goto put_and_out;

		/*
		* NB: handle failure to lookup non-last element when non-dir
		* redirects become possible
		*/
		WARN_ON(!last_element);
		goto out;
		}
		if (last_element)
		@@ -1006,6 +1012,11 @@ struct dentry ovl_lookup(struct inode dir, struct dentry *dentry,
		if (IS_ERR(inode))
		goto out_free_oe;

		/*
		* NB: handle redirected hard links when non-dir redirects
		* become possible
		*/
		WARN_ON(OVL_I(inode)->redirect);
		OVL_I(inode)->redirect = upperredirect;
		}