[PATCH] mfd: mt6370: add bounds checking to regmap_read/write functions

[Andy Shevchenko]

On Fri, Aug 19, 2022 at 8:25 AM Dan Carpenter <dan.carpenter at oracle.com> wrote:
>
> It looks like there are a potential out of bounds accesses in the
> read/write() functions.  Also can "len" be negative?  Let's check for
> that too.

...

> Fixes: ab9905c5e38e ("mfd: mt6370: Add MediaTek MT6370 support")

> From static analysis.  This code is obviously harmless however it may
> not be required.  The regmap range checking is slightly complicated and
> I haven't remembered where all it's done.

Exactement! I do not think this Fixes anything, I believe you are
adding a dead code. So, can you do deeper analysis?

-- 
With Best Regards,
Andy Shevchenko