1 files changed, 28 insertions, 43 deletions

diff --git a/drivers/pnp/card.c b/drivers/pnp/card.c
index 6c0440c20e3..da1c9909eb4 100644
--- a/drivers/pnp/card.c
+++ b/drivers/pnp/card.c
@@ -104,10 +104,6 @@ int pnp_add_card_id(struct pnp_id *id, struct pnp_card *card)
 {
 	struct pnp_id *ptr;
 
-	if (!id)
-		return -EINVAL;
-	if (!card)
-		return -EINVAL;
 	id->next = NULL;
 	ptr = card->id;
 	while (ptr && ptr->next)
@@ -124,8 +120,6 @@ static void pnp_free_card_ids(struct pnp_card *card)
 	struct pnp_id *id;
 	struct pnp_id *next;
 
-	if (!card)
-		return;
 	id = card->id;
 	while (id) {
 		next = id->next;
@@ -197,42 +191,39 @@ int pnp_add_card(struct pnp_card *card)
 	int error;
 	struct list_head *pos, *temp;
 
-	if (!card || !card->protocol)
-		return -EINVAL;
-
 	sprintf(card->dev.bus_id, "%02x:%02x", card->protocol->number,
 		card->number);
 	card->dev.parent = &card->protocol->dev;
 	card->dev.bus = NULL;
 	card->dev.release = &pnp_release_card;
 	error = device_register(&card->dev);
+	if (error) {
+		dev_err(&card->dev, "could not register (err=%d)\n", error);
+		return error;
+	}
 
-	if (error == 0) {
-		pnp_interface_attach_card(card);
-		spin_lock(&pnp_lock);
-		list_add_tail(&card->global_list, &pnp_cards);
-		list_add_tail(&card->protocol_list, &card->protocol->cards);
-		spin_unlock(&pnp_lock);
-
-		/* we wait until now to add devices in order to ensure the drivers
-		 * will be able to use all of the related devices on the card
-		 * without waiting any unresonable length of time */
-		list_for_each(pos, &card->devices) {
-			struct pnp_dev *dev = card_to_pnp_dev(pos);
-			__pnp_add_device(dev);
-		}
+	pnp_interface_attach_card(card);
+	spin_lock(&pnp_lock);
+	list_add_tail(&card->global_list, &pnp_cards);
+	list_add_tail(&card->protocol_list, &card->protocol->cards);
+	spin_unlock(&pnp_lock);
 
-		/* match with card drivers */
-		list_for_each_safe(pos, temp, &pnp_card_drivers) {
-			struct pnp_card_driver *drv =
-			    list_entry(pos, struct pnp_card_driver,
-				       global_list);
-			card_probe(card, drv);
-		}
-	} else
-		pnp_err("sysfs failure, card '%s' will be unavailable",
-			card->dev.bus_id);
-	return error;
+	/* we wait until now to add devices in order to ensure the drivers
+	 * will be able to use all of the related devices on the card
+	 * without waiting an unreasonable length of time */
+	list_for_each(pos, &card->devices) {
+		struct pnp_dev *dev = card_to_pnp_dev(pos);
+		__pnp_add_device(dev);
+	}
+
+	/* match with card drivers */
+	list_for_each_safe(pos, temp, &pnp_card_drivers) {
+		struct pnp_card_driver *drv =
+		    list_entry(pos, struct pnp_card_driver,
+			       global_list);
+		card_probe(card, drv);
+	}
+	return 0;
 }
 
 /**
@@ -243,8 +234,6 @@ void pnp_remove_card(struct pnp_card *card)
 {
 	struct list_head *pos, *temp;
 
-	if (!card)
-		return;
 	device_unregister(&card->dev);
 	spin_lock(&pnp_lock);
 	list_del(&card->global_list);
@@ -263,8 +252,6 @@ void pnp_remove_card(struct pnp_card *card)
  */
 int pnp_add_card_device(struct pnp_card *card, struct pnp_dev *dev)
 {
-	if (!card || !dev || !dev->protocol)
-		return -EINVAL;
 	dev->dev.parent = &card->dev;
 	dev->card_link = NULL;
 	snprintf(dev->dev.bus_id, BUS_ID_SIZE, "%02x:%02x.%02x",
@@ -304,14 +291,15 @@ struct pnp_dev *pnp_request_card_device(struct pnp_card_link *clink,
 	struct pnp_card *card;
 
 	if (!clink || !id)
-		goto done;
+		return NULL;
+
 	card = clink->card;
 	drv = clink->driver;
 	if (!from) {
 		pos = card->devices.next;
 	} else {
 		if (from->card != card)
-			goto done;
+			return NULL;
 		pos = from->card_list.next;
 	}
 	while (pos != &card->devices) {
@@ -321,7 +309,6 @@ struct pnp_dev *pnp_request_card_device(struct pnp_card_link *clink,
 		pos = pos->next;
 	}
 
-done:
 	return NULL;
 
 found:
@@ -348,8 +335,6 @@ void pnp_release_card_device(struct pnp_dev *dev)
 {
 	struct pnp_card_driver *drv = dev->card_link->driver;
 
-	if (!drv)
-		return;
 	drv->link.remove = &card_remove;
 	device_release_driver(&dev->dev);
 	drv->link.remove = &card_remove_first;