x86: preset apic clockevents multiplicator

The check for an unitialized clock event device triggers, when the local
apic timer is registered as a dummy clock event device for broadcasting.
Preset the multiplicator to avoid a false positive.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/kernel/apic_32.c

@@ -377,8 +377,10 @@ void __init setup_boot_APIC_clock(void)
 	 */
 	if (local_apic_timer_disabled) {
 		/* No broadcast on UP ! */
-		if (num_possible_cpus() > 1)
+		if (num_possible_cpus() > 1) {
+			lapic_clockevent.mult = 1;
 			setup_APIC_timer();
+		}
 		return;
 	}
 

arch/x86/kernel/apic_64.c

@@ -375,8 +375,10 @@ void __init setup_boot_APIC_clock(void)
 	if (disable_apic_timer) {
 		printk(KERN_INFO "Disabling APIC timer\n");
 		/* No broadcast on UP ! */
-		if (num_possible_cpus() > 1)
+		if (num_possible_cpus() > 1) {
+			lapic_clockevent.mult = 1;
 			setup_APIC_timer();
+		}
 		return;
 	}