VFS: fs/cachefiles: d_backing_inode() annotations
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/cachefiles/bind.c b/fs/cachefiles/bind.c
index fbb08e9..6af790f 100644
--- a/fs/cachefiles/bind.c
+++ b/fs/cachefiles/bind.c
@@ -123,11 +123,11 @@
/* check parameters */
ret = -EOPNOTSUPP;
- if (!root->d_inode ||
- !root->d_inode->i_op->lookup ||
- !root->d_inode->i_op->mkdir ||
- !root->d_inode->i_op->setxattr ||
- !root->d_inode->i_op->getxattr ||
+ if (d_is_negative(root) ||
+ !d_backing_inode(root)->i_op->lookup ||
+ !d_backing_inode(root)->i_op->mkdir ||
+ !d_backing_inode(root)->i_op->setxattr ||
+ !d_backing_inode(root)->i_op->getxattr ||
!root->d_sb->s_op->statfs ||
!root->d_sb->s_op->sync_fs)
goto error_unsupported;