diff --git a/sys/x86/x86/mp_x86.c b/sys/x86/x86/mp_x86.c
--- a/sys/x86/x86/mp_x86.c
+++ b/sys/x86/x86/mp_x86.c
@@ -980,10 +980,9 @@
 cpu_add(u_int apic_id, char boot_cpu)
 {
 
-	if (apic_id > max_apic_id) {
+	if (apic_id > max_apic_id)
 		panic("SMP: APIC ID %d too high", apic_id);
-		return;
-	}
+
 	KASSERT(cpu_info[apic_id].cpu_present == 0, ("CPU %u added twice",
 	    apic_id));
 	cpu_info[apic_id].cpu_present = 1;