[ACPI] Fix the regression with c1_default_handler on some systems

where C-states come from FADT.

Thanks to Kevin Radloff for identifying the issue and
isolating it to exact line of code that is causing the issue.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 8f038cd..aea745f 100644 (file)
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -842,7 +842,7 @@ static int acpi_processor_get_power_info (
        result = acpi_processor_get_power_info_cst(pr);
        if ((result) || (acpi_processor_power_verify(pr) < 2)) {
                result = acpi_processor_get_power_info_fadt(pr);
-               if (result)
+               if ((result) || (acpi_processor_power_verify(pr) < 2))
                        result = acpi_processor_get_power_info_default_c1(pr);
        }