lb: fix coverity warning

Type: fix
Ticket: VPP-1837
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: I357eb72d478d8175ab9c7cf502d312ab3112213e
(cherry picked from commit a53068905eb3f005a5a6d324c37f51056fb49b3e)

diff --git a/src/plugins/lb/lb.c b/src/plugins/lb/lb.c
index 6c9ae60..a8ad254 100644 (file)
--- a/src/plugins/lb/lb.c
+++ b/src/plugins/lb/lb.c
@@ -904,7 +904,7 @@ static void lb_vip_add_adjacency(lb_main_t *lbm, lb_vip_t *vip,
                                       vip->protocol, vip->port, &vip_idx))
         {
           lb_vip_t *exists_vip = lb_vip_get_by_index(vip_idx);
-          *vip_prefix_index = exists_vip->vip_prefix_index;
+          *vip_prefix_index = exists_vip ? exists_vip->vip_prefix_index : ~0;
           return;
         }