udc-core provides a better way to handle release
methods, let's use it.
Signed-off-by: Felipe Balbi <balbi@ti.com>
        udc->gadget.speed = USB_SPEED_UNKNOWN;
        udc->gadget.max_speed = USB_SPEED_FULL;
        udc->gadget.name = driver_name;
-       udc->gadget.dev.release = omap_udc_release;
        udc->transceiver = xceiv;
 
        /* ep0 is special; put it right after the SETUP buffer */
        }
 
        create_proc_file();
-       status = usb_add_gadget_udc(&pdev->dev, &udc->gadget);
+       status = usb_add_gadget_udc_release(&pdev->dev, &udc->gadget,
+                       omap_udc_release);
        if (status)
                goto cleanup4;