[PATCH] drm/amd/pm: fix warning using uninitialized value of max_vid_step

[Jesse Zhang]

Check the return of pp_atomfwctrl_get_Voltage_table_v4
as it may fail to initialize max_vid_step

Signed-off-by: Jesse Zhang <Jesse.Zhang at amd.com>
---
 drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_hwmgr.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_hwmgr.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_hwmgr.c
index b602059436a8..70c711cec897 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_hwmgr.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_hwmgr.c
@@ -2573,8 +2573,12 @@ static int vega10_init_smc_table(struct pp_hwmgr *hwmgr)
 		}
 	}
 
-	pp_atomfwctrl_get_voltage_table_v4(hwmgr, VOLTAGE_TYPE_VDDC,
+	result = pp_atomfwctrl_get_voltage_table_v4(hwmgr, VOLTAGE_TYPE_VDDC,
 			VOLTAGE_OBJ_SVID2,  &voltage_table);
+	PP_ASSERT_WITH_CODE(result < 0,
+			"Failed to get voltage tables!",
+			return result);
+
 	pp_table->MaxVidStep = voltage_table.max_vid_step;
 
 	pp_table->GfxDpmVoltageMode =
-- 
2.25.1