[NET]: Convert USB drivers away from init_etherdev().

drivers/usb/net/catc.c

@@ -795,7 +795,7 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id
 
 	memset(catc, 0, sizeof(struct catc));
 
-	netdev = init_etherdev(0, 0);
+	netdev = alloc_etherdev(0);
 	if (!netdev) {
 		kfree(catc);
 		return -EIO;
@@ -933,6 +933,17 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id
 	for (i = 0; i < 5; i++) printk("%2.2x:", netdev->dev_addr[i]);
 	printk("%2.2x.\n", netdev->dev_addr[i]);
 	usb_set_intfdata(intf, catc);
+
+	if (register_netdev(netdev) != 0) {
+		usb_set_intfdata(intf, NULL);
+		usb_free_urb(catc->ctrl_urb);
+		usb_free_urb(catc->tx_urb);
+		usb_free_urb(catc->rx_urb);
+		usb_free_urb(catc->irq_urb);
+		kfree(netdev);
+		kfree(catc);
+		return -EIO;
+	}
 	return 0;
 }
 

drivers/usb/net/cdc-ether.c

@@ -1216,7 +1216,7 @@ static int CDCEther_probe( struct usb_interface *intf,
 	}
 
 	// Now we need to get a kernel Ethernet interface.
-	net = init_etherdev( NULL, 0 );
+	net = alloc_etherdev(0);
 	if ( !net ) {
 		// Hmm...  The kernel is not sharing today...
 		// Fine, we didn't want it anyway...
@@ -1263,6 +1263,11 @@ static int CDCEther_probe( struct usb_interface *intf,
 	// TODO - last minute HACK
 	ether_dev->comm_ep_in = 5;
 
+	if (register_netdev(net) != 0) {
+		usb_put_dev(usb);
+		goto out;
+	}
+
 /* FIXME!!! This driver needs to be fixed to work with the new USB interface logic
  * this is not the correct thing to be doing here, we need to set the interface
  * driver specific data field.
@@ -1270,6 +1275,13 @@ static int CDCEther_probe( struct usb_interface *intf,
 	// Okay, we are finally done...
 	return 0;
 
+
+out:
+	usb_driver_release_interface( &CDCEther_driver, 
+	                              &(usb->config[ether_dev->configuration_num].interface[ether_dev->comm_interface]) );
+
+	usb_driver_release_interface( &CDCEther_driver, 
+	                              &(usb->config[ether_dev->configuration_num].interface[ether_dev->data_interface]) );
 	// bailing out with our tail between our knees
 error_all:
 	usb_free_urb(ether_dev->tx_urb);

drivers/usb/net/kaweth.c

@@ -1016,7 +1016,7 @@ static int kaweth_probe(
 
 	kaweth_dbg("Initializing net device.");
 
-	if(!(netdev = kmalloc(sizeof(struct net_device), GFP_KERNEL))) {
+	if (!(netdev = alloc_etherdev(0))) {
 		kfree(kaweth);
 		return -ENOMEM;
 	}
@@ -1054,18 +1054,21 @@ static int kaweth_probe(
 	
 	SET_MODULE_OWNER(netdev);
 
-	if (!init_etherdev(netdev, 0)) {
+	usb_set_intfdata(intf, kaweth);
+
+	if (register_netdev(netdev) != 0) {
 		kaweth_err("Error calling init_etherdev.");
-		goto err_tx_and_rx;
+		goto err_intfdata;
 	}
 
 	kaweth_info("kaweth interface created at %s", kaweth->net->name);
 
 	kaweth_dbg("Kaweth probe returning.");
 
-	usb_set_intfdata(intf, kaweth);
 	return 0;
 
+err_intfdata:
+	usb_set_intfdata(intf, NULL);
 err_tx_and_rx:
 	usb_free_urb(kaweth->rx_urb);
 err_only_tx:
@@ -1113,6 +1116,7 @@ static void kaweth_disconnect(struct usb_interface *intf)
 
 		kaweth_dbg("Unregistering net device");
 		unregister_netdev(kaweth->net);
+		kfree(kaweth->net);
 	}
 
 	usb_free_urb(kaweth->rx_urb);

drivers/usb/net/pegasus.c

@@ -865,8 +865,6 @@ static int pegasus_open(struct net_device *net)
 	if (!pegasus->rx_skb)
 		return -ENOMEM;
 
-	down(&pegasus->sem);
-
 	set_registers(pegasus, EthID, 6, net->dev_addr);
 	
 	usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
@@ -894,8 +892,6 @@ static int pegasus_open(struct net_device *net)
 	set_carrier(net);
 	res = 0;
 exit:
-	up(&pegasus->sem);
-
 	return res;
 }
 
@@ -903,13 +899,11 @@ static int pegasus_close(struct net_device *net)
 {
 	pegasus_t *pegasus = net->priv;
 
-	down(&pegasus->sem);
 	pegasus->flags &= ~PEGASUS_RUNNING;
 	netif_stop_queue(net);
 	if (!(pegasus->flags & PEGASUS_UNPLUG))
 		disable_net_traffic(pegasus);
 	unlink_all_urbs(pegasus);
-	up(&pegasus->sem);
 
 	return 0;
 }
@@ -1068,7 +1062,6 @@ static int pegasus_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
 	pegasus_t *pegasus = net->priv;
 	int res;
 
-	down(&pegasus->sem);
 	switch (cmd) {
 	case SIOCETHTOOL:
 		res = pegasus_ethtool_ioctl(net, rq->ifr_data);
@@ -1080,17 +1073,14 @@ static int pegasus_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
 		res = 0;
 		break;
 	case SIOCDEVPRIVATE + 2:
-		if (!capable(CAP_NET_ADMIN)) {
-			up(&pegasus->sem);
+		if (!capable(CAP_NET_ADMIN))
 			return -EPERM;
-		}
 		write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, data[2]);
 		res = 0;
 		break;
 	default:
 		res = -EOPNOTSUPP;
 	}
-	up(&pegasus->sem);
 	return res;
 }
 
@@ -1170,33 +1160,27 @@ static int pegasus_probe(struct usb_interface *intf,
 	struct net_device *net;
 	pegasus_t *pegasus;
 	int dev_index = id - pegasus_ids;
+	int res = -ENOMEM;
 
+	usb_get_dev(dev);
 	if (!(pegasus = kmalloc(sizeof (struct pegasus), GFP_KERNEL))) {
 		err("out of memory allocating device structure");
-		return -ENOMEM;
+		goto out;
 	}
 
-	usb_get_dev(dev);
 	memset(pegasus, 0, sizeof (struct pegasus));
 	pegasus->dev_index = dev_index;
 	init_waitqueue_head(&pegasus->ctrl_wait);
 
-	if (!alloc_urbs(pegasus)) {
-		kfree(pegasus);
-		return -ENOMEM;
-	}
+	if (!alloc_urbs(pegasus))
+		goto out1;
 
-	net = init_etherdev(NULL, 0);
-	if (!net) {
-		free_all_urbs(pegasus);
-		kfree(pegasus);
-		return -ENODEV;
-	}
+	net = alloc_etherdev(0);
+	if (!net)
+		goto out2;
 
-	init_MUTEX(&pegasus->sem);
 	tasklet_init(&pegasus->rx_tl, rx_fixup, (unsigned long) pegasus);
 
-	down(&pegasus->sem);
 	pegasus->usb = dev;
 	pegasus->net = net;
 	SET_MODULE_OWNER(net);
@@ -1221,12 +1205,8 @@ static int pegasus_probe(struct usb_interface *intf,
 	get_interrupt_interval(pegasus);
 	if (reset_mac(pegasus)) {
 		err("can't reset MAC");
-		unregister_netdev(pegasus->net);
-		free_all_urbs(pegasus);
-		kfree(pegasus->net);
-		kfree(pegasus);
-		pegasus = NULL;
-		goto exit;
+		res = -EIO;
+		goto out3;
 	}
 	set_ethernet_addr(pegasus);
 	fill_skb_pool(pegasus);
@@ -1240,13 +1220,24 @@ static int pegasus_probe(struct usb_interface *intf,
 		warn("can't locate MII phy, using default");
 		pegasus->phy = 1;
 	}
-exit:
-	up(&pegasus->sem);
-	if (pegasus) {
-		usb_set_intfdata(intf, pegasus);
-		return 0;
-	}
-	return -EIO;
+	usb_set_intfdata(intf, pegasus);
+	res = register_netdev(net);
+	if (res)
+		goto out4;
+	return 0;
+
+out4:
+	usb_set_intfdata(intf, NULL);
+	free_skb_pool(pegasus);
+out3:
+	kfree(net);
+out2:
+	free_all_urbs(pegasus);
+out1:
+	kfree(pegasus);
+out:
+	usb_put_dev(dev);
+	return res;
 }
 
 static void pegasus_disconnect(struct usb_interface *intf)
@@ -1269,7 +1260,6 @@ static void pegasus_disconnect(struct usb_interface *intf)
 		dev_kfree_skb(pegasus->rx_skb);
 	kfree(pegasus->net);
 	kfree(pegasus);
-	pegasus = NULL;
 }
 
 static struct usb_driver pegasus_driver = {

drivers/usb/net/pegasus.h

@@ -98,7 +98,6 @@ typedef struct pegasus {
 	struct sk_buff		*rx_skb;
 	struct usb_ctrlrequest	dr;
 	wait_queue_head_t	ctrl_wait;
-	struct semaphore	sem;
 	spinlock_t		rx_pool_lock;
 	int			chip;
 	unsigned char		intr_buff[8];

drivers/usb/net/rtl8150.c

@@ -88,7 +88,6 @@ MODULE_DEVICE_TABLE(usb, rtl8150_table);
 struct rtl8150 {
 	unsigned long flags;
 	struct usb_device *udev;
-	struct semaphore sem;
 	struct tasklet_struct tl;
 	struct net_device_stats stats;
 	struct net_device *netdev;
@@ -638,8 +637,6 @@ static int rtl8150_open(struct net_device *netdev)
 	if (!dev->rx_skb)
 		return -ENOMEM;
 
-	down(&dev->sem);
-
 	set_registers(dev, IDR, 6, netdev->dev_addr);
 	
 	usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1),
@@ -653,7 +650,6 @@ static int rtl8150_open(struct net_device *netdev)
 		warn("%s: intr_urb submit failed: %d", __FUNCTION__, res);
 	netif_start_queue(netdev);
 	enable_net_traffic(dev);
-	up(&dev->sem);
 
 	return res;
 }
@@ -667,12 +663,10 @@ static int rtl8150_close(struct net_device *netdev)
 	if (!dev)
 		return -ENODEV;
 
-	down(&dev->sem);
 	netif_stop_queue(netdev);
 	if (!test_bit(RTL8150_UNPLUG, &dev->flags))
 		disable_net_traffic(dev);
 	unlink_all_urbs(dev);
-	up(&dev->sem);
 
 	return res;
 }
@@ -760,7 +754,6 @@ static int rtl8150_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
 	data = (u16 *) & rq->ifr_data;
 	res = 0;
 
-	down(&dev->sem);
 	switch (cmd) {
 	case SIOCETHTOOL:
 		res = rtl8150_ethtool_ioctl(netdev, rq->ifr_data);
@@ -771,16 +764,13 @@ static int rtl8150_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
 		read_mii_word(dev, dev->phy, (data[1] & 0x1f), &data[3]);
 		break;
 	case SIOCDEVPRIVATE + 2:
-		if (!capable(CAP_NET_ADMIN)) {
-			up(&dev->sem);
+		if (!capable(CAP_NET_ADMIN))
 			return -EPERM;
-		}
 		write_mii_word(dev, dev->phy, (data[1] & 0x1f), data[2]);
 		break;
 	default:
 		res = -EOPNOTSUPP;
 	}
-	up(&dev->sem);
 	return res;
 }
 
@@ -798,18 +788,16 @@ static int rtl8150_probe(struct usb_interface *intf,
 	} else
 		memset(dev, 0, sizeof(rtl8150_t));
 
-	netdev = init_etherdev(NULL, 0);
+	netdev = alloc_etherdev(0);
 	if (!netdev) {
 		kfree(dev);
 		err("Oh boy, out of memory again?!?");
 		return -ENOMEM;
 	}
 
-	init_MUTEX(&dev->sem);
 	tasklet_init(&dev->tl, rx_fixup, (unsigned long)dev);
 	spin_lock_init(&dev->rx_pool_lock);
 	
-	down(&dev->sem);
 	dev->udev = udev;
 	dev->netdev = netdev;
 	SET_MODULE_OWNER(netdev);
@@ -828,23 +816,30 @@ static int rtl8150_probe(struct usb_interface *intf,
 
 	if (!alloc_all_urbs(dev)) {
 		err("out of memory");
-		goto err;
+		goto out;
 	}
 	if (!rtl8150_reset(dev)) {
 		err("couldn't reset the device");
-		free_all_urbs(dev);
-		goto err;
+		goto out1;
 	}
 	fill_skb_pool(dev);
 	set_ethernet_addr(dev);
 	info("%s: rtl8150 is detected", netdev->name);
 	
-	up(&dev->sem);
 	usb_set_intfdata(intf, dev);
+
+	if (register_netdev(netdev) != 0) {
+		err("couldn't register the device");
+		goto out2;
+	}
 	return 0;
-err:
-	unregister_netdev(dev->netdev);
-	up(&dev->sem);
+
+out2:
+	usb_set_intfdata(intf, NULL);
+	free_skb_pool(dev);
+out1:
+	free_all_urbs(dev);
+out:
 	kfree(netdev);
 	kfree(dev);
 	return -EIO;
@@ -865,8 +860,6 @@ static void rtl8150_disconnect(struct usb_interface *intf)
 			dev_kfree_skb(dev->rx_skb);
 		kfree(dev->netdev);
 		kfree(dev);
-		dev->netdev = NULL;
-		dev = NULL;
 	}
 }