diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index cda8fd720000..cdc2ae1632b2 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -285,6 +285,12 @@ static int __init acpi_processor_driver_init(void)
 unregister_idle_drv:
 	acpi_processor_unregister_idle_driver();
 
+	if (acpi_processor_cpufreq_init) {
+		cpufreq_unregister_notifier(&acpi_processor_notifier_block,
+					    CPUFREQ_POLICY_NOTIFIER);
+		acpi_processor_cpufreq_init = false;
+	}
+
 	return result;
 }