ACPI: don't load acpi_cpufreq if acpi=off

Signed-off-by: NYinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c

@@ -779,6 +779,9 @@ static int __init acpi_cpufreq_init(void)
 {
 	int ret;
 
+	if (acpi_disabled)
+		return 0;
+
 	dprintk("acpi_cpufreq_init\n");
 
 	ret = acpi_cpufreq_early_init();