[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: Jaroslav Kysela <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/pnp/card.c

···
 	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;
 		}
 	}