[PATCH] drm/amd/powerplay: fix a signedness bugs
Eric Huang
jinhuieric.huang at amd.com
Thu May 18 16:28:09 UTC 2017
Reviewed-by: Eric Huang <JinHuiEric.Huang at amd.com>
On 2017-05-16 10:42 AM, Dan Carpenter wrote:
> Smatch complains about a signedness bug here:
>
> vega10_hwmgr.c:4202 vega10_force_clock_level()
> warn: always true condition '(i >= 0) => (0-u32max >= 0)'
>
> Fixes: 7b52db39a4c2 ("drm/amd/powerplay: fix bug sclk/mclk level can't be set on vega10.")
> Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>
>
> diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
> index ad30f5d3a10d..2614af2f553f 100644
> --- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
> +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
> @@ -4186,7 +4186,7 @@ static int vega10_force_clock_level(struct pp_hwmgr *hwmgr,
> enum pp_clock_type type, uint32_t mask)
> {
> struct vega10_hwmgr *data = (struct vega10_hwmgr *)(hwmgr->backend);
> - uint32_t i;
> + int i;
>
> if (hwmgr->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL)
> return -EINVAL;
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