[PATCH] reiserfs: null pointer dereferencing in reiserfs_read_bitmap_block

null pointer dereferencing in reiserfs_read_bitmap_block.

Signed-off-by: Alexander Zarochentsev <[e-mail]>
Cc: Jeff Mahoney <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

fs/reiserfs/bitmap.c

···
 
 	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);