conf: fix use after free
conf: fix use after free

Reviewed-by: Daniel P. Berrangé <bb938cf255e055ff3507f2627d214e8e62118fcf@redhat.com>
Signed-off-by: Ryan Moeller <ea3cd978650417470535f3a4725b6b5042a6ab59@iXsystems.com>

zippy2/libvirt,fabianfreyer/libvirt,crobinso/libvirt,fabianfreyer/libvirt,nertpinx/libvirt,fabianfreyer/libvirt,zippy2/libvirt,nertpinx/libvirt,jfehlig/libvirt,nertpinx/libvirt,olafhering/libvirt,olafhering/libvirt,olafhering/libvirt,libvirt/libvirt,libvirt/libvirt,jardasgit/libvirt,zippy2/libvirt,olafhering/libvirt,libvirt/libvirt,nertpinx/libvirt,crobinso/libvirt,jardasgit/libvirt,nertpinx/libvirt,crobinso/libvirt,jardasgit/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,libvirt/libvirt,jfehlig/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,jfehlig/libvirt,jfehlig/libvirt,zippy2/libvirt,crobinso/libvirt