ACPI / dock: Drop unnecessary local variable from dock_add()

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>

1 files changed, 4 insertions, 5 deletions

diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index c89a9c3b48b4..f601658a4ad2 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -836,14 +836,13 @@ static struct attribute_group dock_attribute_group = {
  */
 static int __init dock_add(acpi_handle handle)
 {
-        int ret, id;
-        struct dock_station ds, *dock_station;
+        struct dock_station *dock_station, ds = { NULL, };
         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);