diff --git a/drivers/gpu/drm/amd/pm/inc/hwmgr.h b/drivers/gpu/drm/amd/pm/inc/hwmgr.h
index b8e33325fac67b506707659d136f3a8e55597a70..7e0c948a70977ebc4a012d70a8e5b2719944d929 100644
--- a/drivers/gpu/drm/amd/pm/inc/hwmgr.h
+++ b/drivers/gpu/drm/amd/pm/inc/hwmgr.h
@@ -393,7 +393,7 @@ union phm_cac_leakage_record {
 
 struct phm_cac_leakage_table {
 	uint32_t count;
-	union phm_cac_leakage_record entries[1];
+	union phm_cac_leakage_record entries[];
 };
 
 struct phm_samu_clock_voltage_dependency_record {
diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/processpptables.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/processpptables.c
index 7719f52e6d52f62065a59ae938443a0ae5ff79b3..e059802d1e25d9e3a66ba19fcd911d94cecae761 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/processpptables.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/processpptables.c
@@ -1384,17 +1384,14 @@ static int get_cac_leakage_table(struct pp_hwmgr *hwmgr,
 				const ATOM_PPLIB_CAC_Leakage_Table *table)
 {
 	struct phm_cac_leakage_table  *cac_leakage_table;
-	unsigned long            table_size, i;
+	unsigned long i;
 
-	if (hwmgr == NULL || table == NULL || ptable == NULL)
+	if (!hwmgr || !table || !ptable)
 		return -EINVAL;
 
-	table_size = sizeof(ULONG) +
-		(sizeof(struct phm_cac_leakage_table) * table->ucNumEntries);
-
-	cac_leakage_table = kzalloc(table_size, GFP_KERNEL);
-
-	if (cac_leakage_table == NULL)
+	cac_leakage_table = kzalloc(struct_size(cac_leakage_table, entries, table->ucNumEntries),
+				    GFP_KERNEL);
+	if (!cac_leakage_table)
 		return -ENOMEM;
 
 	cac_leakage_table->count = (ULONG)table->ucNumEntries;