Re: [PATCH] sector_t last is unsigned, so cannot be less than 0.

From: Jan Kara
Date: Mon Jan 19 2009 - 08:18:43 EST


Hi Roel,

On Sun 18-01-09 23:45:13, Roel Kluin wrote:
> sector_t last is unsigned, so cannot be less than 0.
>
> Signed-off-by: Roel Kluin <roel.kluin@xxxxxxxxx>
> ---
> diff --git a/fs/udf/super.c b/fs/udf/super.c
> index e25e701..1f3941d 100644
> --- a/fs/udf/super.c
> +++ b/fs/udf/super.c
> @@ -721,7 +721,7 @@ static sector_t udf_scan_anchors(struct super_block *sb, sector_t lastblock)
> * however, if the disc isn't closed, it could be 512 */
>
> for (i = 0; i < ARRAY_SIZE(last); i++) {
> - if (last[i] < 0)
> + if (last[i] > lastblock + 1)
> continue;
> if (last[i] >= sb->s_bdev->bd_inode->i_size >>
> sb->s_blocksize_bits)
I already have your cleanup of this check in my UDF tree. I'm sorry it's not
in Linus's tree yet but I forgot to merge it with Linus during the merge
window..

Honza
--
Jan Kara <jack@xxxxxxx>
SUSE Labs, CR
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