namelen can't be zero; neither when it's coming from dentry name,
nor when dealing with orphans (in ocfs2_orphan_add() and
__ocfs2_prepare_orphan_dir()).  Rudiment of old ext2 pointless
check, long gone in ext2 itself...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
        struct buffer_head *insert_bh = lookup->dl_leaf_bh;
        char *data_start = insert_bh->b_data;
 
-       if (!namelen)
-               return -EINVAL;
-
        if (ocfs2_dir_indexed(dir)) {
                struct buffer_head *bh;
 
        trace_ocfs2_prepare_dir_for_insert(
                (unsigned long long)OCFS2_I(dir)->ip_blkno, namelen);
 
-       if (!namelen) {
-               ret = -EINVAL;
-               mlog_errno(ret);
-               goto out;
-       }
-
        /*
         * Do this up front to reduce confusion.
         *