Commit aa8a149c authored by Bjorn Helgaas's avatar Bjorn Helgaas Committed by Len Brown
Browse files

ACPI: remove unused "status_changed" return value from Check Device handling 



Remove "status_changed" return from acpi_bus_check_device().  Nobody
does anything useful based on its value.

Signed-off-by: default avatarBjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 02c37bd8

drivers/acpi/bus.c

+3 −19
Original line number Diff line number Diff line
@@ -450,8 +450,7 @@ int acpi_bus_receive_event(struct acpi_bus_event *event) 
                             Notification Handling

   -------------------------------------------------------------------------- */



static int

acpi_bus_check_device(struct acpi_device *device, int *status_changed)

static int acpi_bus_check_device(struct acpi_device *device)

{

	acpi_status status = 0;

	struct acpi_device_status old_status;
@@ -460,9 +459,6 @@ acpi_bus_check_device(struct acpi_device *device, int *status_changed) 
	if (!device)

		return -EINVAL;



	if (status_changed)

		*status_changed = 0;



	old_status = device->status;



	/*
@@ -471,10 +467,6 @@ acpi_bus_check_device(struct acpi_device *device, int *status_changed) 
	 */

	if (device->parent && !device->parent->status.present) {

		device->status = device->parent->status;

		if (STRUCT_TO_INT(old_status) != STRUCT_TO_INT(device->status)) {

			if (status_changed)

				*status_changed = 1;

		}

		return 0;

	}
@@ -485,9 +477,6 @@ acpi_bus_check_device(struct acpi_device *device, int *status_changed) 
	if (STRUCT_TO_INT(old_status) == STRUCT_TO_INT(device->status))

		return 0;



	if (status_changed)

		*status_changed = 1;



	/*

	 * Device Insertion/Removal

	 */
@@ -505,20 +494,15 @@ acpi_bus_check_device(struct acpi_device *device, int *status_changed) 
static int acpi_bus_check_scope(struct acpi_device *device)

{

	int result = 0;

	int status_changed = 0;





	if (!device)

		return -EINVAL;



	/* Status Change? */

	result = acpi_bus_check_device(device, &status_changed);

	result = acpi_bus_check_device(device);

	if (result)

		return result;



	if (!status_changed)

		return 0;



	/*

	 * TBD: Enumerate child devices within this device's scope and

	 *       run acpi_bus_check_device()'s on them.
@@ -571,7 +555,7 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data) 
		break;



	case ACPI_NOTIFY_DEVICE_CHECK:

		result = acpi_bus_check_device(device, NULL);

		result = acpi_bus_check_device(device);

		/*

		 * TBD: We'll need to outsource certain events to non-ACPI

		 *      drivers via the device manager (device.c).