ACPI: battery: add struct acpi_device to struct acpi_battery.

- Use it instead of acpi_bus_get_device()..

Signed-off-by: Patrick Mochel <mochel@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 4 insertions, 5 deletions

diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 00b0728efe82..ba34ca611d71 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -109,6 +109,7 @@ struct acpi_battery_trips {
 
 struct acpi_battery {
         acpi_handle handle;
+        struct acpi_device * device;
         struct acpi_battery_flags flags;
         struct acpi_battery_trips trips;
         unsigned long alarm;
@@ -278,9 +279,7 @@ static int acpi_battery_check(struct acpi_battery *battery)
         if (!battery)
                 return -EINVAL;
 
-        result = acpi_bus_get_device(battery->handle, &device);
-        if (result)
-                return result;
+        device = battery->device;
 
         result = acpi_bus_get_status(device);
         if (result)
@@ -662,8 +661,7 @@ static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
         if (!battery)
                 return;
 
-        if (acpi_bus_get_device(handle, &device))
-                return;
+        device = battery->device;
 
         switch (event) {
         case ACPI_BATTERY_NOTIFY_STATUS:
@@ -696,6 +694,7 @@ static int acpi_battery_add(struct acpi_device *device)
         memset(battery, 0, sizeof(struct acpi_battery));
 
         battery->handle = device->handle;
+        battery->device = device;
         strcpy(acpi_device_name(device), ACPI_BATTERY_DEVICE_NAME);
         strcpy(acpi_device_class(device), ACPI_BATTERY_CLASS);
         acpi_driver_data(device) = battery;