From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> Make acpi_device_set_power() check if the given device is power manageable before checking if the given power state is valid for that device. Otherwise it will print that "Device does not support" that power state into the kernel log, which may not make sense for some power states (D0 and D3cold are supported by all devices by definition). Tested-by: Yinghai Lu <yinghai@xxxxxxxxxx> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> --- drivers/acpi/device_pm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) Index: linux-pm/drivers/acpi/device_pm.c =================================================================== --- linux-pm.orig/drivers/acpi/device_pm.c +++ linux-pm/drivers/acpi/device_pm.c @@ -159,7 +159,8 @@ int acpi_device_set_power(struct acpi_de int result = 0; bool cut_power = false; - if (!device || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3_COLD)) + if (!device || !device->flags.power_manageable + || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3_COLD)) return -EINVAL; /* Make sure this is a valid target state */ -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
