Input: drivers/input/joystick - don't access dev->private directly

Use input_get_drvdata() and input_set_drvdata() instead.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/joystick/grip.c b/drivers/input/joystick/grip.c
index 17a90c4..41da7f1 100644
--- a/drivers/input/joystick/grip.c
+++ b/drivers/input/joystick/grip.c
@@ -285,7 +285,7 @@
 
 static int grip_open(struct input_dev *dev)
 {
-	struct grip *grip = dev->private;
+	struct grip *grip = input_get_drvdata(dev);
 
 	gameport_start_polling(grip->gameport);
 	return 0;
@@ -293,7 +293,7 @@
 
 static void grip_close(struct input_dev *dev)
 {
-	struct grip *grip = dev->private;
+	struct grip *grip = input_get_drvdata(dev);
 
 	gameport_stop_polling(grip->gameport);
 }
@@ -364,7 +364,8 @@
 		input_dev->id.product = grip->mode[i];
 		input_dev->id.version = 0x0100;
 		input_dev->cdev.dev = &gameport->dev;
-		input_dev->private = grip;
+
+		input_set_drvdata(input_dev, grip);
 
 		input_dev->open = grip_open;
 		input_dev->close = grip_close;