diff options
Diffstat (limited to 'net/ipv6/ip6_output.c')
-rw-r--r-- | net/ipv6/ip6_output.c | 64 |
1 files changed, 32 insertions, 32 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 0e844c2736a7..3df2c442d90b 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c | |||
@@ -943,39 +943,39 @@ static int ip6_dst_lookup_tail(struct sock *sk, | |||
943 | } | 943 | } |
944 | 944 | ||
945 | #ifdef CONFIG_IPV6_OPTIMISTIC_DAD | 945 | #ifdef CONFIG_IPV6_OPTIMISTIC_DAD |
946 | /* | 946 | /* |
947 | * Here if the dst entry we've looked up | 947 | * Here if the dst entry we've looked up |
948 | * has a neighbour entry that is in the INCOMPLETE | 948 | * has a neighbour entry that is in the INCOMPLETE |
949 | * state and the src address from the flow is | 949 | * state and the src address from the flow is |
950 | * marked as OPTIMISTIC, we release the found | 950 | * marked as OPTIMISTIC, we release the found |
951 | * dst entry and replace it instead with the | 951 | * dst entry and replace it instead with the |
952 | * dst entry of the nexthop router | 952 | * dst entry of the nexthop router |
953 | */ | 953 | */ |
954 | if (!((*dst)->neighbour->nud_state & NUD_VALID)) { | 954 | if ((*dst)->neighbour && !((*dst)->neighbour->nud_state & NUD_VALID)) { |
955 | struct inet6_ifaddr *ifp; | 955 | struct inet6_ifaddr *ifp; |
956 | struct flowi fl_gw; | 956 | struct flowi fl_gw; |
957 | int redirect; | 957 | int redirect; |
958 | 958 | ||
959 | ifp = ipv6_get_ifaddr(net, &fl->fl6_src, | 959 | ifp = ipv6_get_ifaddr(net, &fl->fl6_src, |
960 | (*dst)->dev, 1); | 960 | (*dst)->dev, 1); |
961 | 961 | ||
962 | redirect = (ifp && ifp->flags & IFA_F_OPTIMISTIC); | 962 | redirect = (ifp && ifp->flags & IFA_F_OPTIMISTIC); |
963 | if (ifp) | 963 | if (ifp) |
964 | in6_ifa_put(ifp); | 964 | in6_ifa_put(ifp); |
965 | 965 | ||
966 | if (redirect) { | 966 | if (redirect) { |
967 | /* | 967 | /* |
968 | * We need to get the dst entry for the | 968 | * We need to get the dst entry for the |
969 | * default router instead | 969 | * default router instead |
970 | */ | 970 | */ |
971 | dst_release(*dst); | 971 | dst_release(*dst); |
972 | memcpy(&fl_gw, fl, sizeof(struct flowi)); | 972 | memcpy(&fl_gw, fl, sizeof(struct flowi)); |
973 | memset(&fl_gw.fl6_dst, 0, sizeof(struct in6_addr)); | 973 | memset(&fl_gw.fl6_dst, 0, sizeof(struct in6_addr)); |
974 | *dst = ip6_route_output(net, sk, &fl_gw); | 974 | *dst = ip6_route_output(net, sk, &fl_gw); |
975 | if ((err = (*dst)->error)) | 975 | if ((err = (*dst)->error)) |
976 | goto out_err_release; | 976 | goto out_err_release; |
977 | } | ||
978 | } | 977 | } |
978 | } | ||
979 | #endif | 979 | #endif |
980 | 980 | ||
981 | return 0; | 981 | return 0; |