diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 9756b5c22d9460cf5a476f306fffdf31f56ef0b4..be52c748bccb1c569799975824916095883e5e65 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -217,7 +217,7 @@ static int usb_serial_multi_urb_write(struct tty_struct *tty,
 			usb_sndbulkpipe(port->serial->dev,
 					port->bulk_out_endpointAddress),
 			buffer, towrite,
-			usb_serial_generic_write_bulk_callback, port);
+			port->serial->type->write_bulk_callback, port);
 
 		status = usb_submit_urb(urb, GFP_ATOMIC);
 		if (status) {