diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/fiji_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/fiji_hwmgr.c
index c0c9cc32409ac8b35493d50d188357a82b2d34c2..120a9e2c31523d14b226e0b4d813274e61e6a940 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/fiji_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/fiji_hwmgr.c
@@ -1662,7 +1662,6 @@ static int fiji_populate_cac_table(struct pp_hwmgr *hwmgr,
 {
 	uint32_t count;
 	uint8_t index;
-	int result = 0;
 	struct fiji_hwmgr *data = (struct fiji_hwmgr *)(hwmgr->backend);
 	struct phm_ppt_v1_information *table_info =
 			(struct phm_ppt_v1_information *)(hwmgr->pptable);
@@ -1684,7 +1683,7 @@ static int fiji_populate_cac_table(struct pp_hwmgr *hwmgr,
 						VOLTAGE_SCALE)) / 25);
 	}
 
-	return result;
+	return 0;
 }
 
 /**
@@ -4573,7 +4572,6 @@ static int fiji_trim_single_dpm_states(struct pp_hwmgr *hwmgr,
 static int fiji_trim_dpm_states(struct pp_hwmgr *hwmgr,
 		const struct fiji_power_state *fiji_ps)
 {
-	int result = 0;
 	struct fiji_hwmgr *data = (struct fiji_hwmgr *)(hwmgr->backend);
 	uint32_t high_limit_count;
 
@@ -4593,7 +4591,7 @@ static int fiji_trim_dpm_states(struct pp_hwmgr *hwmgr,
 			fiji_ps->performance_levels[0].memory_clock,
 			fiji_ps->performance_levels[high_limit_count].memory_clock);
 
-	return result;
+	return 0;
 }
 
 static int fiji_generate_dpm_level_enable_mask(
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
index 417e525dc3748e4de5840a235a43ed8d7d753428..82d01d7bce60082fa137c16b9d25783d208a0d21 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
@@ -4322,7 +4322,6 @@ static int polaris10_trim_single_dpm_states(struct pp_hwmgr *hwmgr,
 static int polaris10_trim_dpm_states(struct pp_hwmgr *hwmgr,
 		const struct polaris10_power_state *polaris10_ps)
 {
-	int result = 0;
 	struct polaris10_hwmgr *data = (struct polaris10_hwmgr *)(hwmgr->backend);
 	uint32_t high_limit_count;
 
@@ -4342,7 +4341,7 @@ static int polaris10_trim_dpm_states(struct pp_hwmgr *hwmgr,
 			polaris10_ps->performance_levels[0].memory_clock,
 			polaris10_ps->performance_levels[high_limit_count].memory_clock);
 
-	return result;
+	return 0;
 }
 
 static int polaris10_generate_dpm_level_enable_mask(
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
index 306483d8036a641c665711e0d1cca8554f5896bc..c7dc111221c2f2766611cadf4417cd925e66d2fe 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
@@ -1334,7 +1334,6 @@ static int tonga_populate_cac_tables(struct pp_hwmgr *hwmgr,
 {
 	uint32_t count;
 	uint8_t index;
-	int result = 0;
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
 	struct phm_ppt_v1_information *pptable_info = (struct phm_ppt_v1_information *)(hwmgr->pptable);
 	struct phm_ppt_v1_voltage_lookup_table *vddgfx_lookup_table = pptable_info->vddgfx_lookup_table;
@@ -1381,7 +1380,7 @@ static int tonga_populate_cac_tables(struct pp_hwmgr *hwmgr,
 		}
 	}
 
-	return result;
+	return 0;
 }
 
 
@@ -5460,7 +5459,6 @@ static	int tonga_trim_single_dpm_states(struct pp_hwmgr *hwmgr,
 
 static int tonga_trim_dpm_states(struct pp_hwmgr *hwmgr, const struct tonga_power_state *hw_state)
 {
-	int result = 0;
 	struct tonga_hwmgr *data = (struct tonga_hwmgr *)(hwmgr->backend);
 	uint32_t high_limit_count;
 
@@ -5480,7 +5478,7 @@ static int tonga_trim_dpm_states(struct pp_hwmgr *hwmgr, const struct tonga_powe
 						hw_state->performance_levels[0].memory_clock,
 						hw_state->performance_levels[high_limit_count].memory_clock);
 
-	return result;
+	return 0;
 }
 
 static int tonga_generate_dpm_level_enable_mask(struct pp_hwmgr *hwmgr, const void *input)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_processpptables.c b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_processpptables.c
index 53f02c7bdec2e3e3fcb5b5db048269a1f2d5f3d7..cfb647f76cbe91df4c355411b2254dc54efb9848 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_processpptables.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_processpptables.c
@@ -1068,7 +1068,6 @@ int tonga_pp_tables_initialize(struct pp_hwmgr *hwmgr)
 
 int tonga_pp_tables_uninitialize(struct pp_hwmgr *hwmgr)
 {
-	int result = 0;
 	struct phm_ppt_v1_information *pp_table_information =
 		(struct phm_ppt_v1_information *)(hwmgr->pptable);
 
@@ -1108,7 +1107,7 @@ int tonga_pp_tables_uninitialize(struct pp_hwmgr *hwmgr)
 	kfree(hwmgr->pptable);
 	hwmgr->pptable = NULL;
 
-	return result;
+	return 0;
 }
 
 const struct pp_table_func tonga_pptable_funcs = {
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/tonga_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/tonga_smumgr.c
index b22722eabafcbc53477dd284a2671326443ec011..f42c536b3af10a58bb12b95fd6ecdd52a9e0b0b0 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/tonga_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/tonga_smumgr.c
@@ -479,7 +479,6 @@ static int tonga_request_smu_reload_fw(struct pp_smumgr *smumgr)
 	struct tonga_smumgr *tonga_smu =
 		(struct tonga_smumgr *)(smumgr->backend);
 	uint16_t fw_to_load;
-	int result = 0;
 	struct SMU_DRAMData_TOC *toc;
 	/**
 	 * First time this gets called during SmuMgr init,
@@ -563,7 +562,7 @@ static int tonga_request_smu_reload_fw(struct pp_smumgr *smumgr)
 		smumgr, PPSMC_MSG_LoadUcodes, fw_to_load),
 		"Fail to Request SMU Load uCode", return 0);
 
-	return result;
+	return 0;
 }
 
 static int tonga_request_smu_load_specific_fw(struct pp_smumgr *smumgr,