If ocfs2_is_overwrite failed, ocfs2_direct_IO_write mays till return
success to the caller.
Signed-off-by: Norton.Zhu <norton.zhu@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
                is_overwrite = ocfs2_is_overwrite(osb, inode, offset);
                if (is_overwrite < 0) {
                        mlog_errno(is_overwrite);
+                       ret = is_overwrite;
                        ocfs2_inode_unlock(inode, 1);
                        goto clean_orphan;
                }