bfs_add_entry(): get rid of pointless ->d_name.len checks

First of all, any dentry getting here would have passed bfs_lookup(),
so it it passed ENAMETOOLONG check there, there's no need to
repeat it.  And we are not going to get dentries with zero name length -
that check ultimately comes from ext2 and it's as pointless here as it
used to be there.

Acked-by: Tigran Aivazian <aivazian.tigran@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

Author: Al Viro

fs/bfs/dir.c

@@ -275,11 +275,6 @@ static int bfs_add_entry(struct inode *dir, const struct qstr *child, int ino)
 
 	dprintf("name=%s, namelen=%d\n", name, namelen);
 
-	if (!namelen)
-		return -ENOENT;
-	if (namelen > BFS_NAMELEN)
-		return -ENAMETOOLONG;
-
 	sblock = BFS_I(dir)->i_sblock;
 	eblock = BFS_I(dir)->i_eblock;
 	for (block = sblock; block <= eblock; block++) {