From: Matthew Smith <mgsmith@netgate.com>
Date: Wed, 2 Oct 2019 21:34:27 +0000 (-0500)
Subject: ethernet: fix dmac filter coverity warning
X-Git-Tag: v20.05-rc0~725
X-Git-Url: https://gerrit.fd.io/r/gitweb?p=vpp.git;a=commitdiff_plain;h=4938938621a3b2aad48adc5894823472e88f183e

ethernet: fix dmac filter coverity warning

Static analysis says that a possibly null pointer is dereferenced.
Check it first.

Type: fix

Change-Id: I3d1a1548162d1dfc26f19fbcf159f0f1f91eb7c4
Signed-off-by: Matthew Smith <mgsmith@netgate.com>
---

diff --git a/src/vnet/ethernet/node.c b/src/vnet/ethernet/node.c
index 488218e1a87..9c9143dd4ba 100755
--- a/src/vnet/ethernet/node.c
+++ b/src/vnet/ethernet/node.c
@@ -859,7 +859,7 @@ eth_input_process_frame (vlib_main_t * vm, vlib_node_runtime_t * node,
 
   if (dmac_check)
     {
-      if (vec_len (ei->secondary_addrs))
+      if (ei && vec_len (ei->secondary_addrs))
 	eth_input_process_frame_dmac_check (hi, dmacs, dmacs_bad, n_packets,
 					    ei, 1 /* have_sec_dmac */ );
       else