Don't try to probe ISA PnP devices for now until this driver can grow a

list of known-valid PnP IDs.

Discussed with:	imp
MFC after:	3 days

sys/dev/advansys/adv_isa.c

@@ -115,6 +115,12 @@ adv_isa_probe(device_t dev)
 	void	*ih;
 	struct resource	*iores, *irqres;
 
+	/*
+	 * We don't know of any PnP ID's for these cards.
+	 */
+	if (isa_get_logicalid(dev) != 0)
+		return (ENXIO);
+
 	/*
 	 * Default to scanning all possible device locations.
 	 */