linux-kernel - Re: [PATCH] mfd: mt6370: Add the overbound check to prevent the null pointer

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Date:   Thu, 20 Oct 2022 20:16:37 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     cy_huang <u0084500@...il.com>
Cc:     lee@...nel.org, matthias.bgg@...il.com, chiaen_wu@...htek.com,
        cy_huang@...htek.com, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mfd: mt6370: Add the overbound check to prevent the null pointer

On Thu, Oct 20, 2022 at 7:31 PM cy_huang <u0084500@...il.com> wrote:
>
> From: ChiYuan Huang <cy_huang@...htek.com>
>
> This potential risk could happen at regmap_raw_read or
> regmap_raw_write when accessing the over-bound register address.

Functions are referred to as func().

> Below's the issue reproduced log to access over-bound register with
> regmap_raw_read function.

Ditto.

> [   41.301385] Hardware name: Raspberry Pi 4 Model B Rev 1.2 (DT)
> [   41.307296] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)

Please, read Submitting Patches, and trim your commit message accordingly.

-- 
With Best Regards,
Andy Shevchenko