[NETNS]: Pass correct namespace in context fib_check_nh.

Correct network namespace is already used in fib_check_nh. Re-work its
usage for better readability and pass into fib_lookup &
inetdev_by_index.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 8b47e112ae5c3415be00a515edb53fe9ce11ab9a..c7912866d98719d248c796c89b1a1ef9d899e92a 100644 (file)
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -519,7 +519,9 @@ static int fib_check_nh(struct fib_config *cfg, struct fib_info *fi,
                        struct fib_nh *nh)
 {
        int err;
+       struct net *net;
 
+       net = cfg->fc_nlinfo.nl_net;
        if (nh->nh_gw) {
                struct fib_result res;
 
@@ -532,11 +534,9 @@ static int fib_check_nh(struct fib_config *cfg, struct fib_info *fi,
 
                        if (cfg->fc_scope >= RT_SCOPE_LINK)
                                return -EINVAL;
-                       if (inet_addr_type(cfg->fc_nlinfo.nl_net,
-                                          nh->nh_gw) != RTN_UNICAST)
+                       if (inet_addr_type(net, nh->nh_gw) != RTN_UNICAST)
                                return -EINVAL;
-                       if ((dev = __dev_get_by_index(cfg->fc_nlinfo.nl_net,
-                                                     nh->nh_oif)) == NULL)
+                       if ((dev = __dev_get_by_index(net, nh->nh_oif)) == NULL)
                                return -ENODEV;
                        if (!(dev->flags&IFF_UP))
                                return -ENETDOWN;
@@ -559,7 +559,7 @@ static int fib_check_nh(struct fib_config *cfg, struct fib_info *fi,
                        /* It is not necessary, but requires a bit of thinking */
                        if (fl.fl4_scope < RT_SCOPE_LINK)
                                fl.fl4_scope = RT_SCOPE_LINK;
-                       if ((err = fib_lookup(&init_net, &fl, &res)) != 0)
+                       if ((err = fib_lookup(net, &fl, &res)) != 0)
                                return err;
                }
                err = -EINVAL;
@@ -583,7 +583,7 @@ out:
                if (nh->nh_flags&(RTNH_F_PERVASIVE|RTNH_F_ONLINK))
                        return -EINVAL;
 
-               in_dev = inetdev_by_index(&init_net, nh->nh_oif);
+               in_dev = inetdev_by_index(net, nh->nh_oif);
                if (in_dev == NULL)
                        return -ENODEV;
                if (!(in_dev->dev->flags&IFF_UP)) {