linux-kernel - Re: [PATCH 3/3] mtd: phram: Fix error return code in phram

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Date:   Thu, 8 Apr 2021 14:46:10 +0200
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Yu Kuai <yukuai3@...wei.com>
Cc:     <joern@...ybastard.org>, <richard@....at>, <vigneshr@...com>,
        <matthias.bgg@...il.com>, <linux-mtd@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>, <yi.zhang@...wei.com>
Subject: Re: [PATCH 3/3] mtd: phram: Fix error return code in phram_setup()

Hi Yu,

Yu Kuai <yukuai3@...wei.com> wrote on Thu, 8 Apr 2021 19:15:14 +0800:

> Fix to return a negative error code from the error handling
> case instead of 0, as done elsewhere in this function.
> 
> Reported-by: Hulk Robot <hulkci@...wei.com>
> Signed-off-by: Yu Kuai <yukuai3@...wei.com>
> ---
>  drivers/mtd/devices/phram.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c
> index 5b04ae6c3057..6ed6c51fac69 100644
> --- a/drivers/mtd/devices/phram.c
> +++ b/drivers/mtd/devices/phram.c
> @@ -270,6 +270,7 @@ static int phram_setup(const char *val)
>  	if (len == 0 || erasesize == 0 || erasesize > len
>  	    || erasesize > UINT_MAX || rem) {
>  		parse_err("illegal erasesize or len\n");
> +		ret = -EINVAL;
>  		goto error;
>  	}
>  

It looks like you're doing the opposite of what you say.

Thanks,
Miquèl