[PATCH] broken error path in drivers/pnp/card.c

The error path in pnp_request_card_device() is broken (one variable is
left initialized and the semaphore is not unlocked).

This fixes it (and has been tested).
Signed-off-by: NJaroslav Kysela <perex@suse.cz>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

drivers/pnp/card.c

@@ -312,6 +312,8 @@ struct pnp_dev * pnp_request_card_device(struct pnp_card_link *clink, const char
 	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;
 		}
 	}