Input: iforce - only call iforce_process_packet() if initialized

It is excessive to check if device is fully initialized in
iforce_process_packet(), as for USB-conected devices we do not start
collecting reports until the device is fully initialized.

Let's change serio transport code to not call iforce_process_packet()
until device initialization is done.
Tested-by: Tim Schumacher <timschumi@gmx.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/joystick/iforce/iforce-packets.c

@@ -172,9 +172,6 @@ void iforce_process_packet(struct iforce *iforce,
 	struct input_dev *dev = iforce->dev;
 	int i, j;
 
-	if (!iforce->type)
-		return;
-
 	switch (packet_id) {
 
 	case 0x01:	/* joystick position data */

drivers/input/joystick/iforce/iforce-serio.c

@@ -172,7 +172,7 @@ static irqreturn_t iforce_serio_irq(struct serio *serio,
 
 			/* Signal that command is done */
 			wake_up(&iforce->wait);
-		} else {
+		} else if (likely(iforce->type)) {
 			iforce_process_packet(iforce, iforce_serio->id,
 					      iforce->data, iforce_serio->len);
 		}