[PATCH] drm/amd/pm/smu11: Prevent division by zero

[Denis Arefev]

> ---
>  drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
> index 189c6a32b6bd..54229b991858 100644
> --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
> +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
> @@ -1200,7 +1200,7 @@ int smu_v11_0_set_fan_speed_rpm(struct smu_context *smu,
>         uint32_t crystal_clock_freq = 2500;
>         uint32_t tach_period;
>
> -       if (speed == 0)
> +       if (!speed || speed > UINT_MAX/8)
>                 return -EINVAL;
>         /*
>          * To prevent from possible overheat, some ASICs may have requirement
> --
> 2.43.0
>

Hi Alex.

The patch 'drm/amd/pm/smu11: Prevent division by zero' was sent 
separately, not part of the patch series, maybe that's why it wasn't
accepted. Should I resend it?

Regards, Denis.