l2tp: hold tunnel while handling genl tunnel updates
authorGuillaume Nault <g.nault@alphalink.fr>
Fri, 25 Aug 2017 14:51:42 +0000 (16:51 +0200)
committerDavid S. Miller <davem@davemloft.net>
Mon, 28 Aug 2017 18:34:58 +0000 (11:34 -0700)
commit8c0e421525c9eb50d68e8f633f703ca31680b746
tree2647c4fa3aeb5b983c65f151ab05405dd37bd3cd
parentbb0a32ce4389e17e47e198d2cddaf141561581ad
l2tp: hold tunnel while handling genl tunnel updates

We need to make sure the tunnel is not going to be destroyed by
l2tp_tunnel_destruct() concurrently.

Fixes: 309795f4bec2 ("l2tp: Add netlink control API for L2TP")
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/l2tp/l2tp_netlink.c