1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index be2dae52f6fa..3bfca093a870 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -899,7 +899,7 @@ static int acpi_processor_power_verify(struct acpi_processor *pr)
                 case ACPI_STATE_C3:
                         acpi_processor_power_verify_c3(pr, cx);
 #ifdef ARCH_APICTIMER_STOPS_ON_C3
-                        if (c->x86_vendor == X86_VENDOR_INTEL) {
+                        if (cx->valid && c->x86_vendor == X86_VENDOR_INTEL) {
                                 on_each_cpu(switch_APIC_timer_to_ipi,
                                                 &mask, 1, 1);
                         }