From b1c0f99bfb89cd9b42e3119ab822a8102fa87909 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 24 Jan 2013 12:50:09 +0100 Subject: ACPI / PM: Expose current status of ACPI power resources Since ACPI power resources are going to be used more extensively on new hardware platforms, it becomes necessary for user space (powertop in particular) to observe some properties of those resources for diagnostics purposes. For this reason, expose the current status of each ACPI power resource to user space via sysfs by adding a new resource_in_use attribute to the sysfs directory representing the given power resource. Signed-off-by: Rafael J. Wysocki Acked-by: Greg Kroah-Hartman --- drivers/acpi/scan.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/acpi/scan.c') diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 9761d589f3f5..9801837876b7 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -791,6 +791,9 @@ static void acpi_device_unregister(struct acpi_device *device) acpi_power_add_remove_device(device, false); acpi_device_remove_files(device); + if (device->remove) + device->remove(device); + device_del(&device->dev); /* * Drop the reference counts of all power resources the device depends -- cgit v1.2.1