[PATCH] ufs: missed brelse and wrong baseblk

This patch fixes two bugs, which introduced by previous patches:

1) Missed "brelse"

2) Sometimes "baseblk" may be wrongly calculated, if i_size is equal to
   zero, which lead infinite cycle in "mpage_writepages".

Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index 7228204..01c5f19 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -175,6 +175,7 @@
 	for (++beg; beg < end; ++beg) {
 		bh = sb_getblk(inode->i_sb, beg);
 		ufs_clear_frag(inode, bh);
+		brelse(bh);
 	}
 	return res;
 }