diff --git a/sys/dev/drm/amd/powerplay/hwmgr/processpptables.c b/sys/dev/drm/amd/powerplay/hwmgr/processpptables.c
--- a/sys/dev/drm/amd/powerplay/hwmgr/processpptables.c
+++ b/sys/dev/drm/amd/powerplay/hwmgr/processpptables.c
@@ -429,6 +429,8 @@
 			struct phm_clock_and_voltage_limits *limits,
 			const ATOM_PPLIB_Clock_Voltage_Limit_Table *table)
 {
+	if (!table->ucNumEntries)
+		return -EINVAL;
 	limits->sclk = ((unsigned long)table->entries[0].ucSclkHigh << 16) |
 			le16_to_cpu(table->entries[0].usSclkLow);
 	limits->mclk = ((unsigned long)table->entries[0].ucMclkHigh << 16) |