Debug message fixes.

src/drivers/bus/eisa.c

 	outb ( enabled ? EISA_CMD_ENABLE : 0,
 	       eisa->ioaddr + EISA_GLOBAL_CONFIG );
 	udelay ( 1000 ); /* Must wait 800 */
+
+	DBG ( "EISA %s device %hhx\n", ( enabled ? "enabled" : "disabled" ),
+	      eisa->slot );
 }

src/drivers/bus/isapnp.c

 			      isapnp->prod_id,
 			      isa_id_string( isapnp->vendor_id,
 					     isapnp->prod_id ),
-			      id->name, driver->name );
+			      id->name, device_driver->name );
 			isapnp->name = id->name;
 			return 1;
 		}
 	/* Return all cards to Wait for Key state */
 	isapnp_wait_for_key ();
 
-	DBG ( "ISAPnP activated device %hhx.%hhx\n",
+	DBG ( "ISAPnP %s device %hhx.%hhx\n",
+	      ( activation ? "activated" : "deactivated" ),
 	      isapnp->csn, isapnp->logdev );
 }
 

src/drivers/bus/mca.c

 		if ( MCA_ID ( mca ) == id->id ) {
 			DBG ( "MCA found ID %hx (device %s) "
 			      "matching driver %s\n",
-			      id->name, id->id, driver->name );
+			      id->name, id->id, device_driver->name );
 			mca->name = id->name;
 			return 1;
 		}