2.6.27-stable review patch. If anyone has any objections, please let us know. ------------------ From: Len Brown commit 19bde778c1fd2574cc020a618d7d576f260271ca upstream. 6328a57401dc5f5cf9931738eb7268fcd8058c49 "Enable PNPACPI _PSx Support, v3" added a call to acpi_bus_set_power(handle, ACPI_STATE_D3) to pnpacpi_disable_resource() before the existing call to evaluate _DIS on the device. This caused suspend to fail on the system in http://bugzilla.kernel.org/show_bug.cgi?id=13243 because the sanity check to verify we entered _PS3 failed on the serial port. As a work-around, that sanity check can be disabled system-wide with "acpi.power_nocheck=1" Or perhaps we should just shrug off the _PS3 failure and carry on with _DIS like we used to -- which is what this patch does. Signed-off-by: Len Brown Signed-off-by: Greg Kroah-Hartman --- drivers/pnp/pnpacpi/core.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) --- a/drivers/pnp/pnpacpi/core.c +++ b/drivers/pnp/pnpacpi/core.c @@ -111,11 +111,9 @@ static int pnpacpi_disable_resources(str /* acpi_unregister_gsi(pnp_irq(dev, 0)); */ ret = 0; - if (acpi_bus_power_manageable(handle)) { - ret = acpi_bus_set_power(handle, ACPI_STATE_D3); - if (ret) - return ret; - } + if (acpi_bus_power_manageable(handle)) + acpi_bus_set_power(handle, ACPI_STATE_D3); + /* continue even if acpi_bus_set_power() fails */ if (ACPI_FAILURE(acpi_evaluate_object(handle, "_DIS", NULL, NULL))) ret = -ENODEV; return ret; -- 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/