227 	int retval;  in ld_usb_interrupt_in_callback()  local
265 		retval = usb_submit_urb(dev->interrupt_in_urb, GFP_ATOMIC);  in ld_usb_interrupt_in_callback()
266 		if (retval) {  in ld_usb_interrupt_in_callback()
268 				"usb_submit_urb failed (%d)\n", retval);  in ld_usb_interrupt_in_callback()
305 	int retval;  in ld_usb_open()  local
330 		retval = -EBUSY;  in ld_usb_open()
352 	retval = usb_submit_urb(dev->interrupt_in_urb, GFP_KERNEL);  in ld_usb_open()
353 	if (retval) {  in ld_usb_open()
354 		dev_err(&interface->dev, "Couldn't submit interrupt_in_urb %d\n", retval);  in ld_usb_open()
366 	return retval;  in ld_usb_open()
375 	int retval = 0;  in ld_usb_release()  local
380 		retval = -ENODEV;  in ld_usb_release()
385 		retval = -ERESTARTSYS;  in ld_usb_release()
390 		retval = -ENODEV;  in ld_usb_release()
411 	return retval;  in ld_usb_release()
447 	int retval = 0;  in ld_usb_read()  local
458 		retval = -ERESTARTSYS;  in ld_usb_read()
464 		retval = -ENODEV;  in ld_usb_read()
465 		printk(KERN_ERR "ldusb: No device or device unplugged %d\n", retval);  in ld_usb_read()
475 			retval = -EAGAIN;  in ld_usb_read()
478 		retval = wait_event_interruptible(dev->read_wait, dev->interrupt_in_done);  in ld_usb_read()
479 		if (retval < 0)  in ld_usb_read()
494 		retval = -EFAULT;  in ld_usb_read()
499 	retval = bytes_to_read;  in ld_usb_read()
517 	return retval;  in ld_usb_read()
528 	int retval = 0;  in ld_usb_write()  local
538 		retval = -ERESTARTSYS;  in ld_usb_write()
544 		retval = -ENODEV;  in ld_usb_write()
545 		printk(KERN_ERR "ldusb: No device or device unplugged %d\n", retval);  in ld_usb_write()
552 			retval = -EAGAIN;  in ld_usb_write()
555 		retval = wait_event_interruptible(dev->write_wait, !dev->interrupt_out_busy);  in ld_usb_write()
556 		if (retval < 0) {  in ld_usb_write()
569 		retval = -EFAULT;  in ld_usb_write()
575 		retval = usb_control_msg(interface_to_usbdev(dev->intf),  in ld_usb_write()
583 		if (retval < 0)  in ld_usb_write()
586 				retval);  in ld_usb_write()
604 	retval = usb_submit_urb(dev->interrupt_out_urb, GFP_KERNEL);  in ld_usb_write()
605 	if (retval) {  in ld_usb_write()
608 			"Couldn't submit interrupt_out_urb %d\n", retval);  in ld_usb_write()
611 	retval = bytes_to_write;  in ld_usb_write()
618 	return retval;  in ld_usb_write()
656 	int retval = -ENOMEM;  in ld_usb_probe()  local
740 	retval = usb_register_dev(intf, &ld_usb_class);  in ld_usb_probe()
741 	if (retval) {  in ld_usb_probe()
753 	return retval;  in ld_usb_probe()
758 	return retval;  in ld_usb_probe()