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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>
This commit is contained in:
YOSHIFUJI Hideaki / 吉藤英明 2013-01-21 09:58:50 +00:00 committed by David S. Miller
parent 100204147b
commit b820bb6b99
1 changed files with 3 additions and 3 deletions
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6
net/ipv6/route.c
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@ -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);