[IPv6] route: Convert route notifications to use rtnl_notify()

Fixes a wrong use of current->pid as netlink pid.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 024c8e26c2ecc4f285381c370999adb64bd44422..1aca787ead85bcb91a18634b6392f8e3ff46f8e5 100644 (file)
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -35,7 +35,6 @@
 #include <linux/netdevice.h>
 #include <linux/in6.h>
 #include <linux/init.h>
-#include <linux/netlink.h>
 #include <linux/if_arp.h>
 
 #ifdef         CONFIG_PROC_FS
@@ -54,6 +53,7 @@
 #include <net/dst.h>
 #include <net/xfrm.h>
 #include <net/netevent.h>
+#include <net/netlink.h>
 
 #include <asm/uaccess.h>
 
@@ -2056,27 +2056,25 @@ void inet6_rt_notify(int event, struct rt6_info *rt, struct nlmsghdr *nlh,
                        struct netlink_skb_parms *req)
 {
        struct sk_buff *skb;
-       int size = NLMSG_SPACE(sizeof(struct rtmsg)+256);
-       u32 pid = current->pid;
-       u32 seq = 0;
-
-       if (req)
-               pid = req->pid;
-       if (nlh)
-               seq = nlh->nlmsg_seq;
-       
-       skb = alloc_skb(size, gfp_any());
-       if (!skb) {
-               netlink_set_err(rtnl, 0, RTNLGRP_IPV6_ROUTE, ENOBUFS);
-               return;
-       }
-       if (rt6_fill_node(skb, rt, NULL, NULL, 0, event, pid, seq, 0, 0) < 0) {
+       u32 pid = req ? req->pid : 0;
+       u32 seq = nlh ? nlh->nlmsg_seq : 0;
+       int payload = sizeof(struct rtmsg) + 256;
+       int err = -ENOBUFS;
+
+       skb = nlmsg_new(nlmsg_total_size(payload), gfp_any());
+       if (skb == NULL)
+               goto errout;
+
+       err = rt6_fill_node(skb, rt, NULL, NULL, 0, event, pid, seq, 0, 0);
+       if (err < 0) {
                kfree_skb(skb);
-               netlink_set_err(rtnl, 0, RTNLGRP_IPV6_ROUTE, EINVAL);
-               return;
+               goto errout;
        }
-       NETLINK_CB(skb).dst_group = RTNLGRP_IPV6_ROUTE;
-       netlink_broadcast(rtnl, skb, 0, RTNLGRP_IPV6_ROUTE, gfp_any());
+
+       err = rtnl_notify(skb, pid, RTNLGRP_IPV6_ROUTE, nlh, gfp_any());
+errout:
+       if (err < 0)
+               rtnl_set_sk_err(RTNLGRP_IPV6_ROUTE, err);
 }
 
 /*