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SubjectRe: [PATCH] mtd: spi-nor: Kill check with no effect
On Sun, 17 Sep 2017 16:13:52 +0200
Richard Weinberger <richard@nod.at> wrote:

> header.major is of type u8 and cannot be negative.

I guess you meant header.minor here.

>
> Detected by CoverityScan CID#1417858 ("Integer handling issues")
>
> Fixes: f384b352cbf0 ("mtd: spi-nor: parse Serial Flash Discoverable
> Parameters (SFDP) tables")
> Signed-off-by: Richard Weinberger <richard@nod.at>
> ---
> Cyrille,
>
> I'm not sure what exactly you wanted to test.
> Maybe it makes sense casting header.major to s8 before checking against < 0?
>
> Thanks,
> //richard
> ---
> drivers/mtd/spi-nor/spi-nor.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
> index d71765739a93..4b86decdf13e 100644
> --- a/drivers/mtd/spi-nor/spi-nor.c
> +++ b/drivers/mtd/spi-nor/spi-nor.c
> @@ -2252,8 +2252,7 @@ static int spi_nor_parse_sfdp(struct spi_nor *nor,
>
> /* Check the SFDP header version. */
> if (le32_to_cpu(header.signature) != SFDP_SIGNATURE ||
> - header.major != SFDP_JESD216_MAJOR ||
> - header.minor < SFDP_JESD216_MINOR)
> + header.major != SFDP_JESD216_MAJOR)
> return -EINVAL;
>
> /*

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