ovl_workdir_create() returns a valid index dentry or NULL.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
 
                ufs->indexdir = ovl_workdir_create(sb, ufs, workpath.dentry,
                                                   OVL_INDEXDIR_NAME, true);
-               err = PTR_ERR(ufs->indexdir);
-               if (IS_ERR(ufs->indexdir))
-                       goto out_put_lower_mnt;
-
                if (ufs->indexdir) {
                        /* Verify upper root is index dir origin */
                        err = ovl_verify_origin(ufs->indexdir, ufs->upper_mnt,