[ovs-git] [openvswitch/ovs] f9a514: ofproto-dpif-trace: Fix for the segmentation fault...

[ashish-varma]

  Branch: refs/heads/branch-2.11
  Home:   https://github.com/openvswitch/ovs
  Commit: f9a514c442a1c5d35ca448c8e6740c9219af6df3
      https://github.com/openvswitch/ovs/commit/f9a514c442a1c5d35ca448c8e6740c9219af6df3
  Author: Ashish Varma <ashishvarma.ovs at gmail.com>
  Date:   2019-02-04 (Mon, 04 Feb 2019)

  Changed paths:
    M ofproto/ofproto-dpif-trace.c

  Log Message:
  -----------
  ofproto-dpif-trace: Fix for the segmentation fault in ofproto_trace().

Added the check for NULL in "next_ct_states" argument passed to the
"ofproto_trace()" function. Under normal scenario, this is non-NULL. A NULL
"next_ct_states" argument is passed from the "upcall_xlate()" function on
encountering XLATE_RECURSION_TOO_DEEP or XLATE_TOO_MANY_RESUBMITS error.

VMware-BZ: #2282287
Signed-off-by: Ashish Varma <ashishvarma.ovs at gmail.com>
Signed-off-by: Ben Pfaff <blp at ovn.org>