Re: [patch] mtd: pxa3xx_nand: NULL dereference in pxa3xx_nand_probe

Sven Neumann
2011-01-06T13:45:09Z

Hi Dan,

On Thu, 2011-01-06 at 15:45 +0300, Dan Carpenter wrote:

> Could you test this patch? I don't have an arm so I can't compile this.

Yes, this change fixes the boot problem for me. Thanks for the quick
help.

> This was introduced in 18c81b1828f8 "mtd: pxa3xx_nand: remove the flash
> info in driver structure"
>
> Signed-off-by: Dan Carpenter <error27@gmail.com>

Tested-by: Sven Neumann <s.neumann@raumfeld.com>

> diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
> index 17f8518..ea2c288 100644
> --- a/drivers/mtd/nand/pxa3xx_nand.c
> +++ b/drivers/mtd/nand/pxa3xx_nand.c
> @@ -885,6 +885,7 @@ static int pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info)
> /* set info fields needed to __readid */
> info->read_id_bytes = (info->page_size == 2048) ? 4 : 2;
> info->reg_ndcr = ndcr;
> + info->cmdset = &default_cmdset;
>
> if (__readid(info, &id))
> return -ENODEV;
> @@ -915,7 +916,6 @@ static int pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info)
>
> info->ndtr0cs0 = nand_readl(info, NDTR0CS0);
> info->ndtr1cs0 = nand_readl(info, NDTR1CS0);
> - info->cmdset = &default_cmdset;
>
> return 0;
> }
>