kern/40966: rum(4) detach error messages

[Bernd Ernesti <pr200909%veego.de@localhost>]

>Number:         40966
>Category:       kern
>Synopsis:       rum(4) detach error messages
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Mar 05 17:45:00 +0000 2009
>Originator:     Bernd Ernesti
>Release:        NetBSD 5.99.7
>Organization:
>Environment:
System: NetBSD 5.99.7
Architecture: i386
Machine: i386
>Description:
        rum(4) prints error messages while remove the usb stick.
        It doesn't matter if rum0 is bought up or still down after inserting it:

         rum0: at uhub3 port 1 (addr 4) disconnected
         rum0: could not multi read MAC register: IOERROR
         rum0: could not multi write MAC register: IOERROR
         rum0: could not multi write MAC register: IOERROR
         rum0: could not multi write MAC register: IOERROR
         rum0: detached

>How-To-Repeat:
        Insert a rum(4) usb device and remove it.

        The following device was used:
         rum0: Ralink 802.11 bg WLAN, rev 2.00/0.01, addr 4
         RF revision=2

>Fix: