port-xen/45089: pci device domu config error

[gabberstudio%mail.ru@localhost]

>Number:         45089
>Category:       port-xen
>Synopsis:       pci device domu config error
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    port-xen-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jun 21 02:00:00 +0000 2011
>Originator:     Sergey
>Release:        5.1 \ i386
>Organization:
>Environment:
>Description:

domu mashine 
pci=['0000:03:01.0']

After start

netbsd Error: pci: failed to locate device and parse it's resources - 
unsupported operand type(s) for +: 'NoneType' and 'str'

p/s
I have made all under the documentation

>How-To-Repeat:

>Fix: