tree 9201b8700d4f8e185def920261a3cb718494cdcb
parent 5a9dbfe08ee17f0dc9ecff647eba3d04afa01200
author Ben Hutchings <ben@decadent.org.uk> 1277552267 +0000
committer David S. Miller <davem@davemloft.net> 1277918923 -0700

ipv6: Clamp reported valid_lft to a minimum of 0

Since addresses are only revalidated every 2 minutes, the reported
valid_lft can underflow shortly before the address is deleted.
Clamp it to a minimum of 0, as for prefered_lft.

Reported-by: Piotr Lewandowski <piotr.lewandowski@gmail.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>