--- a/sys/dev/drm/radeon/si_dpm.c
+++ b/sys/dev/drm/radeon/si_dpm.c
@@ -6354,6 +6354,11 @@
 	struct radeon_ps *boot_ps = rdev->pm.dpm.boot_ps;
 	int ret;
 
+	if (boot_ps == NULL) {
+		DRM_ERROR("no boot power state in VBIOS power table\n");
+		return -EINVAL;
+	}
+
 	if (si_is_smc_running(rdev))
 		return -EINVAL;
 	if (pi->voltage_control || si_pi->voltage_control_svi2)