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-stable review patch. If anyone has any objections, please let us know. ------------------ From: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> [ACPI] Prefer _CST over FADT for C-state capabilities Note: This ACPI standard compliance may cause regression on some system, if they have _CST present, but _CST value is bogus. "nocst" module parameter should workaround that regression. http://bugzilla.kernel.org/show_bug.cgi?id=5165 (cherry picked from 883baf7f7e81cca26f4683ae0d25ba48f094cc08 commit) Signed-off-by: Venkatesh Pallipadi<venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> --- drivers/acpi/processor_idle.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) --- linux-2.6.14.4.orig/drivers/acpi/processor_idle.c +++ linux-2.6.14.4/drivers/acpi/processor_idle.c @@ -706,7 +706,7 @@ static int acpi_processor_get_power_info /* Validate number of power states discovered */ if (pr->power.count < 2) - status = -ENODEV; + status = -EFAULT; end: acpi_os_free(buffer.pointer); @@ -857,11 +857,11 @@ static int acpi_processor_get_power_info * this function */ result = acpi_processor_get_power_info_cst(pr); - if ((result) || (acpi_processor_power_verify(pr) < 2)) { + if (result == -ENODEV) result = acpi_processor_get_power_info_fadt(pr); - if ((result) || (acpi_processor_power_verify(pr) < 2)) - result = acpi_processor_get_power_info_default_c1(pr); - } + + if ((result) || (acpi_processor_power_verify(pr) < 2)) + result = acpi_processor_get_power_info_default_c1(pr); /* * Set Default Policy -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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