[ovs-git] [openvswitch/ovs] 9c2f61: ovn-controller: avoid null ptr dereference

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/openvswitch/ovs
  Commit: 9c2f61ee8f4dffe0d8d6e3bd501e1c9d98bb4530
      https://github.com/openvswitch/ovs/commit/9c2f61ee8f4dffe0d8d6e3bd501e1c9d98bb4530
  Author: Lance Richardson <lrichard at redhat.com>
  Date:   2017-07-26 (Wed, 26 Jul 2017)

  Changed paths:
    M ovn/controller/bfd.c

  Log Message:
  -----------
  ovn-controller: avoid null ptr dereference

Avoid null pointer dereference in fdb_calculate_active_tunnels()
when integration bridge isn't present. This is easily encountered
by executing "make sandbox SANDBOXFLAGS=--ovn".

Fixes: 3475695ea61c ("ovn: l3ha, enable bfd between tunnel endpoints")
Signed-off-by: Lance Richardson <lrichard at redhat.com>
Signed-off-by: Russell Bryant <russell at ovn.org>