[PATCH 1/6] nand_wait_ready timeout fix

[Artem Bityutskiy]

On Sun, 2011-06-26 at 18:26 +0200, Matthieu CASTET wrote:
> nand_wait_ready timeout should not assume HZ=1000.
> Make it independent of HZ value.
> 
> Signed-off-by: Matthieu CASTET <matthieu.castet at parrot.com>
> ---
>  drivers/mtd/nand/nand_base.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
> index a46e9bb..a3c7fd3 100644
> --- a/drivers/mtd/nand/nand_base.c
> +++ b/drivers/mtd/nand/nand_base.c
> @@ -512,7 +512,7 @@ static void panic_nand_wait_ready(struct mtd_info *mtd, unsigned long timeo)
>  void nand_wait_ready(struct mtd_info *mtd)
>  {
>  	struct nand_chip *chip = mtd->priv;
> -	unsigned long timeo = jiffies + 2;
> +	unsigned long timeo = jiffies + (2 * HZ) / 1000;

I agree that the code is buggy, but your fix is strange: if HZ = 100, (2
* HZ) / 1000 will be zero?

I think you should instead know for how many msecs you want to wait, and
use msecs_to_jiffies().

-- 
Best Regards,
Artem Bityutskiy