Commit 
020ecc6f3229 ("staging: lustre: llite: Remove IS_ERR tests")
changed ll_prep_inode to assume any error from ll_iget() meant
-ENOMEM because at that time it only returned NULL for errors.
Commit 
c3397e7e677b ("staging: lustre: llite: add error handler in
inode prepare phase") changed ll_iget() to once again return
meaningful codes, but nobody told ll_prep_inode().
So change ll_prep_inode() back to using PTR_ERR(*inode).
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
                                md.posix_acl = NULL;
                        }
 #endif
-                       rc = -ENOMEM;
+                       rc = PTR_ERR(*inode);
                        CERROR("new_inode -fatal: rc %d\n", rc);
                        goto out;
                }