Nathan Whitehorn 453319bf53 The ofw_bus() routines invoke the device's parent, not the device itself,
so cease iterating when the parent is NULL, not when the device is.

MFC after:	5 days
2013-10-29 21:08:20 +00:00
..
2013-10-29 11:17:49 +00:00
2013-07-02 07:17:56 +00:00