Merge "usb: gadget: Do not disconnect unregistered dev"

static void android_disconnect(struct usb_gadget *gadget)

{

	struct usb_composite_dev        *cdev = get_gadget_data(gadget);

	struct gadget_info *gi = container_of(cdev, struct gadget_info, cdev);

	struct gadget_info *gi;

	if (!cdev) {

		pr_err("%s: gadget is not connected\n", __func__);

		return;

	}

	gi = container_of(cdev, struct gadget_info, cdev);

	/* FIXME: There's a race between usb_gadget_udc_stop() which is likely

	 * to set the gadget driver to NULL in the udc driver and this drivers