[PATCH] udf_find_entry() cleanup

udf_find_entry can never be called with a NULL argument, so we shouldn't
check for it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/udf/namei.c

@@ -164,11 +164,7 @@ udf_find_entry(struct inode *dir, struct dentry *dentry,
 	uint32_t extoffset, elen, offset;
 	struct buffer_head *bh = NULL;
 
-	if (!dir)
-		return NULL;
-
 	size = (udf_ext0_offset(dir) + dir->i_size) >> 2;
-
 	f_pos = (udf_ext0_offset(dir) >> 2);
 
 	fibh->soffset = fibh->eoffset = (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;