Input: joysticks - switch to using input_dev->dev.parent

In preparation for struct class_device -> struct device input
core conversion, switch to using input_dev->dev.parent when
specifying device position in sysfs tree.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/joystick/adi.c b/drivers/input/joystick/adi.c
index e835352..28140c4 100644
--- a/drivers/input/joystick/adi.c
+++ b/drivers/input/joystick/adi.c
@@ -424,7 +424,7 @@
 	input_dev->id.vendor = GAMEPORT_ID_VENDOR_LOGITECH;
 	input_dev->id.product = adi->id;
 	input_dev->id.version = 0x0100;
-	input_dev->cdev.dev = &port->gameport->dev;
+	input_dev->dev.parent = &port->gameport->dev;
 
 	input_set_drvdata(input_dev, port);