libxlDriverConfigNew can possibly fail on wrong
firmware values (unlikely) or on failure to create
the log directory (possible if you're debugging
tests with VIR_FILE_ACCESS)
Signed-off-by: NJán Tomko <jtomko@redhat.com>
Fixes: 4a4132b4Reviewed-by: NJim Fehlig <jfehlig@suse.com>