ACPI: Fix regression where _PPC is not read at boot even when ignore_ppc=0

[safe/jmp/linux-2.6] / drivers / acpi / processor_perflib.c

diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 2cabadc..a959f6a 100644 (file)
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -413,7 +413,11 @@ static int acpi_processor_get_performance_info(struct acpi_processor *pr)
        if (result)
                goto update_bios;
 
-       return 0;
+       /* We need to call _PPC once when cpufreq starts */
+       if (ignore_ppc != 1)
+               result = acpi_processor_get_platform_limit(pr);
+
+       return result;
 
        /*
         * Having _PPC but missing frequencies (_PSS, _PCT) is a very good hint that