usb_register_dev() will change our .minor_base to 0 if
CONFIG_USB_DYNAMIC_MINORS is set.  And it usually is, of
course.
Use dev_name() to print the proper interface name instead
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
        if (rv < 0)
                goto err2;
        else
-               dev_info(&intf->dev, "cdc-wdm%d: USB WDM device\n",
-                       intf->minor - WDM_MINOR_BASE);
+               dev_info(&intf->dev, "%s: USB WDM device\n", dev_name(intf->usb_dev));
 out:
        return rv;
 err2: