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Re: [PATCH] ssb-main: Fix division by zero in ssb_calc_clock_rate()

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On Wed, 30 Aug 2023 14:50:42 -0500
Larry Finger <Larry.Finger@xxxxxxxxxxxx> wrote:

> I agree that clkfactor_f6_resolv() could return 0, but we have not
> been overrun with reports of divide by zero errors, which suggests
> that the branch is never taken. This patch will make your tool happy
> and is much simpler:
> 
> diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
> index ab080cf26c9f..b9934b9c2d70 100644
> --- a/drivers/ssb/main.c
> +++ b/drivers/ssb/main.c
> @@ -837,7 +837,7 @@ static u32 clkfactor_f6_resolve(u32 v)
>          case SSB_CHIPCO_CLK_F6_7:
>                  return 7;
>          }
> -       return 0;
> +       return 1;
>   }

Yes, I agree that this is the much simpler and also more sensible
solution to this theoretical problem.

-- 
Michael Büsch
https://bues.ch/

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