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authorYOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@linux-ipv6.org>2013-01-21 13:58:50 +0400
committerDavid S. Miller <davem@davemloft.net>2013-01-22 00:41:41 +0400
commitb820bb6b996966d93a5442b5fbf803ea58e7f487 (patch)
tree0abfaaf1cc30ca925fef15d755296ef1f3b24651 /net
parent100204147be9a2b87be2b118959b12eeaf8ef5d0 (diff)
downloadlinux-b820bb6b996966d93a5442b5fbf803ea58e7f487.tar.xz
ndisc: Do not try to update "updated" time if neighbour has already gone.
Commit 2152caea ("ipv6: Do not depend on rt->n in rt6_probe().") introduce a bug to try to update "updated" time in neighbour structure. Update the "updated" time only if neighbour is available. Bug was found by Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/route.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 2d94d5a7a051..f3328bc1174f 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -492,10 +492,10 @@ static void rt6_probe(struct rt6_info *rt)
struct in6_addr mcaddr;
struct in6_addr *target;
- neigh->updated = jiffies;
-
- if (neigh)
+ if (neigh) {
+ neigh->updated = jiffies;
write_unlock(&neigh->lock);
+ }
target = (struct in6_addr *)&rt->rt6i_gateway;
addrconf_addr_solict_mult(target, &mcaddr);