[PATCH 07/18] clk: imx: pll14xx: potential integer overflow eliminated by casting to u64

Peng Fan peng.fan at nxp.com
Sat May 4 06:13:17 PDT 2024


> Subject: Re: [PATCH 07/18] clk: imx: pll14xx: potential integer overflow
> eliminated by casting to u64
> 
> Hello Peng,
> 
> On Sat, May 04, 2024 at 08:49:00AM +0800, Peng Fan (OSS) wrote:
> > From: Florin Pavelescu <florin.pavelescu at nxp.com>
> >
> > Cast to u64, so that multiplications and additions will be done in
> > 64-bit arithmetic (and the results will also be 64-bit) and the
> > possibility of integer overflow is eliminated.
> >
> > Fix Unintentional integer overflow reported by Coverity
> 
> Fixes tag if this is a fix?
> 
> It would be interesting in general if this can be trigger in real life and with
> which side effects or if we are just silencing the tool

This is just to silencing the tool, maybe this patch is no needed.

Thanks,
Peng.




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