1 files changed, 24 insertions, 30 deletions

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 1220e2c7831..e83852ab4dc 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2227,10 +2227,24 @@ int addrconf_del_ifaddr(struct net *net, void __user *arg)
 	return err;
 }
 
+static void add_addr(struct inet6_dev *idev, const struct in6_addr *addr,
+		     int plen, int scope)
+{
+	struct inet6_ifaddr *ifp;
+
+	ifp = ipv6_add_addr(idev, addr, plen, scope, IFA_F_PERMANENT);
+	if (!IS_ERR(ifp)) {
+		spin_lock_bh(&ifp->lock);
+		ifp->flags &= ~IFA_F_TENTATIVE;
+		spin_unlock_bh(&ifp->lock);
+		ipv6_ifa_notify(RTM_NEWADDR, ifp);
+		in6_ifa_put(ifp);
+	}
+}
+
 #if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE)
 static void sit_add_v4_addrs(struct inet6_dev *idev)
 {
-	struct inet6_ifaddr * ifp;
 	struct in6_addr addr;
 	struct net_device *dev;
 	struct net *net = dev_net(idev->dev);
@@ -2249,14 +2263,7 @@ static void sit_add_v4_addrs(struct inet6_dev *idev)
 	}
 
 	if (addr.s6_addr32[3]) {
-		ifp = ipv6_add_addr(idev, &addr, 128, scope, IFA_F_PERMANENT);
-		if (!IS_ERR(ifp)) {
-			spin_lock_bh(&ifp->lock);
-			ifp->flags &= ~IFA_F_TENTATIVE;
-			spin_unlock_bh(&ifp->lock);
-			ipv6_ifa_notify(RTM_NEWADDR, ifp);
-			in6_ifa_put(ifp);
-		}
+		add_addr(idev, &addr, 128, scope);
 		return;
 	}
 
@@ -2284,15 +2291,7 @@ static void sit_add_v4_addrs(struct inet6_dev *idev)
 				else
 					plen = 96;
 
-				ifp = ipv6_add_addr(idev, &addr, plen, flag,
-						    IFA_F_PERMANENT);
-				if (!IS_ERR(ifp)) {
-					spin_lock_bh(&ifp->lock);
-					ifp->flags &= ~IFA_F_TENTATIVE;
-					spin_unlock_bh(&ifp->lock);
-					ipv6_ifa_notify(RTM_NEWADDR, ifp);
-					in6_ifa_put(ifp);
-				}
+				add_addr(idev, &addr, plen, flag);
 			}
 		}
 	}
@@ -2302,7 +2301,6 @@ static void sit_add_v4_addrs(struct inet6_dev *idev)
 static void init_loopback(struct net_device *dev)
 {
 	struct inet6_dev  *idev;
-	struct inet6_ifaddr * ifp;
 
 	/* ::1 */
 
@@ -2313,14 +2311,7 @@ static void init_loopback(struct net_device *dev)
 		return;
 	}
 
-	ifp = ipv6_add_addr(idev, &in6addr_loopback, 128, IFA_HOST, IFA_F_PERMANENT);
-	if (!IS_ERR(ifp)) {
-		spin_lock_bh(&ifp->lock);
-		ifp->flags &= ~IFA_F_TENTATIVE;
-		spin_unlock_bh(&ifp->lock);
-		ipv6_ifa_notify(RTM_NEWADDR, ifp);
-		in6_ifa_put(ifp);
-	}
+	add_addr(idev, &in6addr_loopback, 128, IFA_HOST);
 }
 
 static void addrconf_add_linklocal(struct inet6_dev *idev, struct in6_addr *addr)
@@ -3647,7 +3638,8 @@ static void inet6_ifa_notify(int event, struct inet6_ifaddr *ifa)
 		kfree_skb(skb);
 		goto errout;
 	}
-	err = rtnl_notify(skb, net, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
+	rtnl_notify(skb, net, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
+	return;
 errout:
 	if (err < 0)
 		rtnl_set_sk_err(net, RTNLGRP_IPV6_IFADDR, err);
@@ -3858,7 +3850,8 @@ void inet6_ifinfo_notify(int event, struct inet6_dev *idev)
 		kfree_skb(skb);
 		goto errout;
 	}
-	err = rtnl_notify(skb, net, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
+	rtnl_notify(skb, net, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
+	return;
 errout:
 	if (err < 0)
 		rtnl_set_sk_err(net, RTNLGRP_IPV6_IFADDR, err);
@@ -3928,7 +3921,8 @@ static void inet6_prefix_notify(int event, struct inet6_dev *idev,
 		kfree_skb(skb);
 		goto errout;
 	}
-	err = rtnl_notify(skb, net, 0, RTNLGRP_IPV6_PREFIX, NULL, GFP_ATOMIC);
+	rtnl_notify(skb, net, 0, RTNLGRP_IPV6_PREFIX, NULL, GFP_ATOMIC);
+	return;
 errout:
 	if (err < 0)
 		rtnl_set_sk_err(net, RTNLGRP_IPV6_PREFIX, err);