diff options
| author | Don Lewis <truckman@FreeBSD.org> | 2004-01-10 08:14:27 +0000 |
|---|---|---|
| committer | Don Lewis <truckman@FreeBSD.org> | 2004-01-10 08:14:27 +0000 |
| commit | 3f02eaf3969b5fe6db0ff08dd7f2a339eb67b958 (patch) | |
| tree | adf115f96d27623e6a1ebd66095664539263b05d | |
| parent | 5fac41781b59cd10ae969adeab25869bfa25ef16 (diff) | |
Notes
| -rw-r--r-- | sys/netinet6/in6_ifattach.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/sys/netinet6/in6_ifattach.c b/sys/netinet6/in6_ifattach.c index ea0db8beda7e..7f1788c63ac4 100644 --- a/sys/netinet6/in6_ifattach.c +++ b/sys/netinet6/in6_ifattach.c @@ -843,14 +843,16 @@ in6_ifdetach(ifp) sin6.sin6_addr = in6addr_linklocal_allnodes; sin6.sin6_addr.s6_addr16[1] = htons(ifp->if_index); /* XXX grab lock first to avoid LOR */ - RADIX_NODE_HEAD_LOCK(rt_tables[AF_INET6]); - rt = rtalloc1((struct sockaddr *)&sin6, 0, 0UL); - if (rt) { - if (rt->rt_ifp == ifp) - rtexpunge(rt); - RTFREE_LOCKED(rt); + if (rt_tables[AF_INET6] != NULL) { + RADIX_NODE_HEAD_LOCK(rt_tables[AF_INET6]); + rt = rtalloc1((struct sockaddr *)&sin6, 0, 0UL); + if (rt) { + if (rt->rt_ifp == ifp) + rtexpunge(rt); + RTFREE_LOCKED(rt); + } + RADIX_NODE_HEAD_UNLOCK(rt_tables[AF_INET6]); } - RADIX_NODE_HEAD_UNLOCK(rt_tables[AF_INET6]); } void |