btrfs: fix an error handling path in btrfs_rename()

commit abe3bf7425fb695a9b37394af18b9ea58a800802 upstream.

If new_whiteout_inode() fails, some resources need to be freed.
Add the missing goto to the error handling path.

Fixes: ab3c5c18e8fa ("btrfs: setup qstr from dentrys using fscrypt helper")
Reviewed-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 47c5be5..4063447 100644 (file)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -9400,8 +9400,10 @@ static int btrfs_rename(struct user_namespace *mnt_userns,
 
        if (flags & RENAME_WHITEOUT) {
                whiteout_args.inode = new_whiteout_inode(mnt_userns, old_dir);
-               if (!whiteout_args.inode)
-                       return -ENOMEM;
+               if (!whiteout_args.inode) {
+                       ret = -ENOMEM;
+                       goto out_fscrypt_names;
+               }
                ret = btrfs_new_inode_prepare(&whiteout_args, &trans_num_items);
                if (ret)
                        goto out_whiteout_inode;