1 files changed, 26 insertions, 23 deletions

diff --git a/net/rose/rose_route.c b/net/rose/rose_route.c
index 9478d9b3d977..70a0b3b4b4d2 100644
--- a/net/rose/rose_route.c
+++ b/net/rose/rose_route.c
@@ -77,8 +77,9 @@ static int __must_check rose_add_node(struct rose_route_struct *rose_route,
 
 	rose_neigh = rose_neigh_list;
 	while (rose_neigh != NULL) {
-		if (ax25cmp(&rose_route->neighbour, &rose_neigh->callsign) == 0
-		    && rose_neigh->dev == dev)
+		if (ax25cmp(&rose_route->neighbour,
+			    &rose_neigh->callsign) == 0 &&
+		    rose_neigh->dev == dev)
 			break;
 		rose_neigh = rose_neigh->next;
 	}
@@ -234,6 +235,8 @@ static void rose_remove_neigh(struct rose_neigh *rose_neigh)
 
 	if ((s = rose_neigh_list) == rose_neigh) {
 		rose_neigh_list = rose_neigh->next;
+		if (rose_neigh->ax25)
+			ax25_cb_put(rose_neigh->ax25);
 		kfree(rose_neigh->digipeat);
 		kfree(rose_neigh);
 		return;
@@ -242,6 +245,8 @@ static void rose_remove_neigh(struct rose_neigh *rose_neigh)
 	while (s != NULL && s->next != NULL) {
 		if (s->next == rose_neigh) {
 			s->next = rose_neigh->next;
+			if (rose_neigh->ax25)
+				ax25_cb_put(rose_neigh->ax25);
 			kfree(rose_neigh->digipeat);
 			kfree(rose_neigh);
 			return;
@@ -311,8 +316,9 @@ static int rose_del_node(struct rose_route_struct *rose_route,
 
 	rose_neigh = rose_neigh_list;
 	while (rose_neigh != NULL) {
-		if (ax25cmp(&rose_route->neighbour, &rose_neigh->callsign) == 0
-		    && rose_neigh->dev == dev)
+		if (ax25cmp(&rose_route->neighbour,
+			    &rose_neigh->callsign) == 0 &&
+		    rose_neigh->dev == dev)
 			break;
 		rose_neigh = rose_neigh->next;
 	}
@@ -578,18 +584,18 @@ static int rose_clear_routes(void)
 
 /*
  *	Check that the device given is a valid AX.25 interface that is "up".
+ * 	called whith RTNL
  */
-static struct net_device *rose_ax25_dev_get(char *devname)
+static struct net_device *rose_ax25_dev_find(char *devname)
 {
 	struct net_device *dev;
 
-	if ((dev = dev_get_by_name(&init_net, devname)) == NULL)
+	if ((dev = __dev_get_by_name(&init_net, devname)) == NULL)
 		return NULL;
 
 	if ((dev->flags & IFF_UP) && dev->type == ARPHRD_AX25)
 		return dev;
 
-	dev_put(dev);
 	return NULL;
 }
 
@@ -600,13 +606,13 @@ struct net_device *rose_dev_first(void)
 {
 	struct net_device *dev, *first = NULL;
 
-	read_lock(&dev_base_lock);
-	for_each_netdev(&init_net, dev) {
+	rcu_read_lock();
+	for_each_netdev_rcu(&init_net, dev) {
 		if ((dev->flags & IFF_UP) && dev->type == ARPHRD_ROSE)
 			if (first == NULL || strncmp(dev->name, first->name, 3) < 0)
 				first = dev;
 	}
-	read_unlock(&dev_base_lock);
+	rcu_read_unlock();
 
 	return first;
 }
@@ -618,8 +624,8 @@ struct net_device *rose_dev_get(rose_address *addr)
 {
 	struct net_device *dev;
 
-	read_lock(&dev_base_lock);
-	for_each_netdev(&init_net, dev) {
+	rcu_read_lock();
+	for_each_netdev_rcu(&init_net, dev) {
 		if ((dev->flags & IFF_UP) && dev->type == ARPHRD_ROSE && rosecmp(addr, (rose_address *)dev->dev_addr) == 0) {
 			dev_hold(dev);
 			goto out;
@@ -627,7 +633,7 @@ struct net_device *rose_dev_get(rose_address *addr)
 	}
 	dev = NULL;
 out:
-	read_unlock(&dev_base_lock);
+	rcu_read_unlock();
 	return dev;
 }
 
@@ -635,14 +641,14 @@ static int rose_dev_exists(rose_address *addr)
 {
 	struct net_device *dev;
 
-	read_lock(&dev_base_lock);
-	for_each_netdev(&init_net, dev) {
+	rcu_read_lock();
+	for_each_netdev_rcu(&init_net, dev) {
 		if ((dev->flags & IFF_UP) && dev->type == ARPHRD_ROSE && rosecmp(addr, (rose_address *)dev->dev_addr) == 0)
 			goto out;
 	}
 	dev = NULL;
 out:
-	read_unlock(&dev_base_lock);
+	rcu_read_unlock();
 	return dev != NULL;
 }
 
@@ -720,27 +726,23 @@ int rose_rt_ioctl(unsigned int cmd, void __user *arg)
 	case SIOCADDRT:
 		if (copy_from_user(&rose_route, arg, sizeof(struct rose_route_struct)))
 			return -EFAULT;
-		if ((dev = rose_ax25_dev_get(rose_route.device)) == NULL)
+		if ((dev = rose_ax25_dev_find(rose_route.device)) == NULL)
 			return -EINVAL;
-		if (rose_dev_exists(&rose_route.address)) { /* Can't add routes to ourself */
-			dev_put(dev);
+		if (rose_dev_exists(&rose_route.address)) /* Can't add routes to ourself */
 			return -EINVAL;
-		}
 		if (rose_route.mask > 10) /* Mask can't be more than 10 digits */
 			return -EINVAL;
 		if (rose_route.ndigis > AX25_MAX_DIGIS)
 			return -EINVAL;
 		err = rose_add_node(&rose_route, dev);
-		dev_put(dev);
 		return err;
 
 	case SIOCDELRT:
 		if (copy_from_user(&rose_route, arg, sizeof(struct rose_route_struct)))
 			return -EFAULT;
-		if ((dev = rose_ax25_dev_get(rose_route.device)) == NULL)
+		if ((dev = rose_ax25_dev_find(rose_route.device)) == NULL)
 			return -EINVAL;
 		err = rose_del_node(&rose_route, dev);
-		dev_put(dev);
 		return err;
 
 	case SIOCRSCLRRT:
@@ -814,6 +816,7 @@ void rose_link_failed(ax25_cb *ax25, int reason)
 
 	if (rose_neigh != NULL) {
 		rose_neigh->ax25 = NULL;
+		ax25_cb_put(ax25);
 
 		rose_del_route_by_neigh(rose_neigh);
 		rose_kill_by_neigh(rose_neigh);