[PATCH 4/4] ACPI / dock: Drop unnecessary local variable from dock_add()

["Rafael J. Wysocki" <rjw@sisk.pl>]

From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

The local variable id in dock_add() is not necessary, so drop it.

While we're at it, use an initializer to clear the local variable ds
and drop the memset() used for this purpose.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/dock.c |    9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

Index: linux-pm/drivers/acpi/dock.c
===================================================================
--- linux-pm.orig/drivers/acpi/dock.c
+++ linux-pm/drivers/acpi/dock.c
@@ -836,14 +836,13 @@ static struct attribute_group dock_attri
  */
 static int __init dock_add(acpi_handle handle)
 {
-	int ret, id;
-	struct dock_station ds, *dock_station;
+	struct dock_station *dock_station, ds = { 0 };
 	struct platform_device *dd;
 	acpi_status status;
+	int ret;
 
-	id = dock_station_count;
-	memset(&ds, 0, sizeof(ds));
-	dd = platform_device_register_data(NULL, "dock", id, &ds, sizeof(ds));
+	dd = platform_device_register_data(NULL, "dock", dock_station_count,
+					   &ds, sizeof(ds));
 	if (IS_ERR(dd))
 		return PTR_ERR(dd);