--- drivers/usb/serial/visor.c

+++ drivers/usb/serial/visor.c

@@ -249,6 +249,7 @@ static struct usb_serial_driver clie_3_5

.throttle = visor_throttle,

.unthrottle = visor_unthrottle,

.attach = clie_3_5_startup,

+ .release = visor_release,

.write = visor_write,

.write_room = visor_write_room,

.write_bulk_callback = visor_write_bulk_callback,