[ALSA] check return code in pnp_register_card_driver()

Signed-off-by: Adam Belay <ambx1@neo.rr.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

drivers/pnp/card.c

@@ -363,7 +363,7 @@ static int card_resume(struct pnp_dev *dev)
 
 int pnp_register_card_driver(struct pnp_card_driver * drv)
 {
-	int count = 0;
+	int count;
 	struct list_head *pos, *temp;
 
 	drv->link.name = drv->name;
@@ -374,10 +374,15 @@ int pnp_register_card_driver(struct pnp_card_driver * drv)
 	drv->link.suspend = drv->suspend ? card_suspend : NULL;
 	drv->link.resume = drv->resume ? card_resume : NULL;
 
+	count = pnp_register_driver(&drv->link);
+	if (count < 0)
+		return count;
+
 	spin_lock(&pnp_lock);
 	list_add_tail(&drv->global_list, &pnp_card_drivers);
 	spin_unlock(&pnp_lock);
-	pnp_register_driver(&drv->link);
+
+	count = 0;
 
 	list_for_each_safe(pos,temp,&pnp_cards){
 		struct pnp_card *card = list_entry(pos, struct pnp_card, global_list);