drm/amd/powerplay: fix a signedness bugs

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 <[email protected]>
Reviewed-by: Eric Huang <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
index ad30f5d3a10d5ea2a0118203ff66110a11b0583a..2614af2f553f3007ae25cb70e1f8f322c23a62d6 100644 (file)
--- 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;