if (!driver
|| driver->speed < USB_SPEED_FULL
|| !driver->bind
- || !driver->unbind
|| !driver->disconnect
|| !driver->setup)
return -EINVAL;
if (!dev)
return -ENODEV;
- if (!driver || driver != dev->driver)
+ if (!driver || driver != dev->driver || !driver->unbind)
return -EINVAL;
local_irq_disable();
{
struct pxa2xx_udc *dev = platform_get_drvdata(pdev);
+ if (dev->driver)
+ return -EBUSY;
+
udc_disable(dev);
remove_proc_files();
- usb_gadget_unregister_driver(dev->driver);
if (dev->got_irq) {
free_irq(IRQ_USB, dev);