diff --git a/drivers/gpu/drm/amd/pm/inc/hwmgr.h b/drivers/gpu/drm/amd/pm/inc/hwmgr.h
index 7e0c948a70977ebc4a012d70a8e5b2719944d929..dad703ba0522295aa1114b00ee27952e8e001c59 100644
--- a/drivers/gpu/drm/amd/pm/inc/hwmgr.h
+++ b/drivers/gpu/drm/amd/pm/inc/hwmgr.h
@@ -404,7 +404,7 @@ struct phm_samu_clock_voltage_dependency_record {
 
 struct phm_samu_clock_voltage_dependency_table {
 	uint8_t count;
-	struct phm_samu_clock_voltage_dependency_record entries[1];
+	struct phm_samu_clock_voltage_dependency_record entries[];
 };
 
 struct phm_cac_tdp_table {
diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/processpptables.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/processpptables.c
index e059802d1e25d9e3a66ba19fcd911d94cecae761..48d550d26c6a3f6ad39236628b845020c3c32337 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/processpptables.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/processpptables.c
@@ -1163,15 +1163,12 @@ static int get_samu_clock_voltage_limit_table(struct pp_hwmgr *hwmgr,
 		 struct phm_samu_clock_voltage_dependency_table **ptable,
 		 const ATOM_PPLIB_SAMClk_Voltage_Limit_Table *table)
 {
-	unsigned long table_size, i;
+	unsigned long i;
 	struct phm_samu_clock_voltage_dependency_table *samu_table;
 
-	table_size = sizeof(unsigned long) +
-		sizeof(struct phm_samu_clock_voltage_dependency_table) *
-		table->numEntries;
-
-	samu_table = kzalloc(table_size, GFP_KERNEL);
-	if (NULL == samu_table)
+	samu_table = kzalloc(struct_size(samu_table, entries, table->numEntries),
+			     GFP_KERNEL);
+	if (!samu_table)
 		return -ENOMEM;
 
 	samu_table->count = table->numEntries;