]> pilppa.com Git - linux-2.6-omap-h63xx.git/commitdiff
udf: Silence warning about accesses beyond end of device
authorJan Kara <jack@suse.cz>
Mon, 7 Apr 2008 21:16:38 +0000 (23:16 +0200)
committerJan Kara <jack@suse.cz>
Thu, 17 Apr 2008 12:23:17 +0000 (14:23 +0200)
Some of the computed positions of anchor block could be beyond the end of
device. Skip reading such blocks.

Signed-off-by: Jan Kara <jack@suse.cz>
fs/udf/super.c

index b9e719de07048afa43cc1e5a625d0ff2eae10cec..28ed3f5ebd701c272b01759cd6466ed0d7223957 100644 (file)
@@ -688,8 +688,12 @@ static int udf_check_anchor_block(struct super_block *sb, sector_t block,
        uint16_t ident;
        uint32_t location;
 
-       if (varconv)
+       if (varconv) {
+               if (udf_fixed_to_variable(block) >=
+                   sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits)
+                       return 0;
                bh = sb_bread(sb, udf_fixed_to_variable(block));
+       }
        else
                bh = sb_bread(sb, block);