serial = usb_serial_get_by_index(co->index);
        if (serial == NULL) {
                /* no device is connected yet, sorry :( */
-               err("No USB device connected to ttyUSB%i", co->index);
+               printk(KERN_ERR "No USB device connected to ttyUSB%i\n",
+                      co->index);
                return -ENODEV;
        }
 
                        tty = kzalloc(sizeof(*tty), GFP_KERNEL);
                        if (!tty) {
                                retval = -ENOMEM;
-                               err("no more memory");
+                               dev_err(&port->dev, "no more memory\n");
                                goto reset_open_count;
                        }
                        kref_init(&tty->kref);
                        tty->index = co->index;
                        if (tty_init_termios(tty)) {
                                retval = -ENOMEM;
-                               err("no more memory");
+                               dev_err(&port->dev, "no more memory\n");
                                goto free_tty;
                        }
                }
                        retval = usb_serial_generic_open(NULL, port);
 
                if (retval) {
-                       err("could not open USB console port");
+                       dev_err(&port->dev, "could not open USB console port\n");
                        goto fail;
                }