Re: [v3] mtd: spi-nor: cast to u64 to avoid uint overflows

From: Boris Brezillon
Date: Mon Dec 03 2018 - 02:52:04 EST


On Wed, 2018-11-28 at 08:02:14 UTC, Huijin Park wrote:
> From: "huijin.park" <huijin.park@xxxxxxxxxxx>
>
> The "params->size" is defined as "u64".
> And "info->sector_size" and "info->n_sectors" are defined as
> unsigned int and u16.
> Thus, u64 data might have strange data(loss data) if the result
> overflows an unsigned int.
> This patch casts "info->sector_size" to an u64.
>
> Signed-off-by: huijin.park <huijin.park@xxxxxxxxxxx>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>

Applied to http://git.infradead.org/linux-mtd.git mtd/next, thanks.

Boris