237 	int retval;  in ld_usb_interrupt_in_callback()  local
275 		retval = usb_submit_urb(dev->interrupt_in_urb, GFP_ATOMIC);  in ld_usb_interrupt_in_callback()
276 		if (retval) {  in ld_usb_interrupt_in_callback()
278 				"usb_submit_urb failed (%d)\n", retval);  in ld_usb_interrupt_in_callback()
315 	int retval;  in ld_usb_open()  local
340 		retval = -EBUSY;  in ld_usb_open()
362 	retval = usb_submit_urb(dev->interrupt_in_urb, GFP_KERNEL);  in ld_usb_open()
363 	if (retval) {  in ld_usb_open()
364 		dev_err(&interface->dev, "Couldn't submit interrupt_in_urb %d\n", retval);  in ld_usb_open()
376 	return retval;  in ld_usb_open()
385 	int retval = 0;  in ld_usb_release()  local
390 		retval = -ENODEV;  in ld_usb_release()
395 		retval = -ERESTARTSYS;  in ld_usb_release()
400 		retval = -ENODEV;  in ld_usb_release()
421 	return retval;  in ld_usb_release()
457 	int retval = 0;  in ld_usb_read()  local
468 		retval = -ERESTARTSYS;  in ld_usb_read()
474 		retval = -ENODEV;  in ld_usb_read()
475 		printk(KERN_ERR "ldusb: No device or device unplugged %d\n", retval);  in ld_usb_read()
485 			retval = -EAGAIN;  in ld_usb_read()
488 		retval = wait_event_interruptible(dev->read_wait, dev->interrupt_in_done);  in ld_usb_read()
489 		if (retval < 0)  in ld_usb_read()
504 		retval = -EFAULT;  in ld_usb_read()
509 	retval = bytes_to_read;  in ld_usb_read()
527 	return retval;  in ld_usb_read()
538 	int retval = 0;  in ld_usb_write()  local
548 		retval = -ERESTARTSYS;  in ld_usb_write()
554 		retval = -ENODEV;  in ld_usb_write()
555 		printk(KERN_ERR "ldusb: No device or device unplugged %d\n", retval);  in ld_usb_write()
562 			retval = -EAGAIN;  in ld_usb_write()
565 		retval = wait_event_interruptible(dev->write_wait, !dev->interrupt_out_busy);  in ld_usb_write()
566 		if (retval < 0) {  in ld_usb_write()
579 		retval = -EFAULT;  in ld_usb_write()
585 		retval = usb_control_msg(interface_to_usbdev(dev->intf),  in ld_usb_write()
593 		if (retval < 0)  in ld_usb_write()
596 				retval);  in ld_usb_write()
614 	retval = usb_submit_urb(dev->interrupt_out_urb, GFP_KERNEL);  in ld_usb_write()
615 	if (retval) {  in ld_usb_write()
618 			"Couldn't submit interrupt_out_urb %d\n", retval);  in ld_usb_write()
621 	retval = bytes_to_write;  in ld_usb_write()
628 	return retval;  in ld_usb_write()
666 	int retval = -ENOMEM;  in ld_usb_probe()  local
750 	retval = usb_register_dev(intf, &ld_usb_class);  in ld_usb_probe()
751 	if (retval) {  in ld_usb_probe()
763 	return retval;  in ld_usb_probe()
768 	return retval;  in ld_usb_probe()