[POWERPC] EEH: Avoid crash on null device

Bugfix: avoid crash if there's no PCI device for a given
openfirmware node.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Linas Vepstas 2007-11-03 07:29:01 +11:00 committed by Paul Mackerras
commit b37ceefe7c