[PATCH] reiserfs: null pointer dereferencing in reiserfs_read_bitmap_block

null pointer dereferencing in reiserfs_read_bitmap_block.
Signed-off-by: NAlexander Zarochentsev <zam@namesys.com>
Cc: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

fs/reiserfs/bitmap.c

@@ -1304,8 +1304,8 @@ struct buffer_head *reiserfs_read_bitmap_block(struct super_block *sb,
 
 	bh = sb_bread(sb, block);
 	if (bh == NULL)
-		reiserfs_warning(sb, "sh-2029: %s: bitmap block (#%lu) "
-		                 "reading failed", __FUNCTION__, bh->b_blocknr);
+		reiserfs_warning(sb, "sh-2029: %s: bitmap block (#%u) "
+		                 "reading failed", __FUNCTION__, block);
 	else {
 		if (buffer_locked(bh)) {
 			PROC_INFO_INC(sb, scan_bitmap.wait);