[U-Boot] [PATCH v2 1/14] nand: sunxi: Fix modulo by zero error

[Scott Wood]

On Tue, 2016-11-22 at 13:38 +0100, Maxime Ripard wrote:
> When trying to autodetect the ECC and randomization configurations, the
> driver starts with a randomization disabled and no seeds.
> 
> In this case, the number of seeds is obviously 0, and the randomize boolean
> is set to false.
> 
> However, the logic that retrieves the seed for a given page offset will
> blindly use the number of seeds, without testing if the randomization is
> enabled, basically doing a modulo by 0.
> 
> As it turns out, the libgcc in the common toolchain returns 0 here, which
> was our expected value in such a case, and why we would not detect it.
> However, U-Boot's libgcc will for some reason return from the function
> instead, resulting in an error to load the U-Boot binary in the SPL.
> 
> Signed-off-by: Maxime Ripard <maxime.ripard at free-electrons.com>
> ---
>  drivers/mtd/nand/sunxi_nand_spl.c | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)

Acked-by: Scott Wood <oss at buserror.net>

-Scott