linux-kernel - Re: [PATCH v2] mtd: change len type from signed to unsigned type

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Date:   Thu, 15 Nov 2018 10:29:21 +0100
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Huijin Park <huijin.park@...sung.com>
Cc:     Boris Brezillon <boris.brezillon@...tlin.com>,
        Marek Vasut <marek.vasut@...il.com>,
        linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        bbanghj.park@...il.com
Subject: Re: [PATCH v2] mtd: change len type from signed to unsigned type

Hi Huijin,

Huijin Park <huijin.park@...sung.com> wrote on Thu, 15 Nov 2018
00:07:10 -0500:

> From: "huijin.park" <huijin.park@...sung.com>
> 
> This patch casts the "len" parameter to an unsigned int.
> The callers of erase_write() pass the "len" parameter as unsigned int.

Indeed. Perhaps it is worth backporting this patch to a stable releases?

> 
> Signed-off-by: huijin.park <huijin.park@...sung.com>
> ---
>  drivers/mtd/mtdblock.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c
> index a5b1933..b2d5ed1 100644
> --- a/drivers/mtd/mtdblock.c
> +++ b/drivers/mtd/mtdblock.c
> @@ -56,7 +56,7 @@ struct mtdblk_dev {
>   */
>  
>  static int erase_write (struct mtd_info *mtd, unsigned long pos,
> -			int len, const char *buf)
> +			unsigned int len, const char *buf)
>  {
>  	struct erase_info erase;
>  	size_t retlen;

Reviewed-by: Miquel Raynal <miquel.raynal@...tlin.com>


Thanks,
Miquèl