ACPI / PM: Drop acpi_bus_get_power()

There are no more users of acpi_bus_get_power(), so it can be
dropped.  Moreover, it should be dropped, because it modifies
the device->power.state field of an ACPI device without updating
the reference counters of the device's power resources, which is
wrong.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 2ee83b5..0baa5f9 100644 (file)
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -236,25 +236,6 @@ static int __acpi_bus_get_power(struct acpi_device *device, int *state)
 }
 
 
-int acpi_bus_get_power(acpi_handle handle, int *state)
-{
-       struct acpi_device *device;
-       int result;
-
-       result = acpi_bus_get_device(handle, &device);
-       if (result)
-               return result;
-
-       result = __acpi_bus_get_power(device, state);
-       if (result)
-               return result;
-
-       device->power.state = *state;
-       return 0;
-}
-EXPORT_SYMBOL(acpi_bus_get_power);
-
-
 static int __acpi_bus_set_power(struct acpi_device *device, int state)
 {
        int result = 0;

diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 8912580..673a3f4 100644 (file)
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -327,7 +327,6 @@ void acpi_bus_data_handler(acpi_handle handle, void *context);
 acpi_status acpi_bus_get_status_handle(acpi_handle handle,
                                       unsigned long long *sta);
 int acpi_bus_get_status(struct acpi_device *device);
-int acpi_bus_get_power(acpi_handle handle, int *state);
 int acpi_bus_set_power(acpi_handle handle, int state);
 int acpi_bus_update_power(acpi_handle handle, int *state_p);
 bool acpi_bus_power_manageable(acpi_handle handle);