[PATCH] pnp bus type fix

This is Adam's pnp probing fix.  It's been reported to fix hangs on several
people's machines.  I don't know if it's official or final, and Adam isn't
contactable at present.  But I'm not aware of the patch causing any
regressions.
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

drivers/pnp/card.c

@@ -303,13 +303,11 @@ struct pnp_dev * pnp_request_card_device(struct pnp_card_link *clink, const char
 	down_write(&dev->dev.bus->subsys.rwsem);
 	dev->card_link = clink;
 	dev->dev.driver = &drv->link.driver;
-	if (drv->link.driver.probe) {
-		if (drv->link.driver.probe(&dev->dev)) {
-			dev->dev.driver = NULL;
-			dev->card_link = NULL;
-			up_write(&dev->dev.bus->subsys.rwsem);
-			return NULL;
-		}
+	if (pnp_bus_type.probe(&dev->dev)) {
+		dev->dev.driver = NULL;
+		dev->card_link = NULL;
+		up_write(&dev->dev.bus->subsys.rwsem);
+		return NULL;
 	}
 	device_bind_driver(&dev->dev);
 	up_write(&dev->dev.bus->subsys.rwsem);