conntrack: Fix NULL pointer dereference.

Coverity CID 279957 reports NULL pointer derefence when
'conn' is NULL and calling ct_print_conn_info.

Cc: Usman Ansari <uansari@vmware.com>
Signed-off-by: William Tu <u9012063@gmail.com>
Acked-by: Dumitru Ceara <dceara@redhat.com>

diff --git a/lib/conntrack.c b/lib/conntrack.c
index ff5a89457c0ad507c5a64d3a4c66589182f07daa..001a37ff6aff663e51fff9b0468aa9b371e2b0a9 100644 (file)
--- a/lib/conntrack.c
+++ b/lib/conntrack.c
@@ -1302,7 +1302,7 @@ process_one(struct conntrack *ct, struct dp_packet *pkt,
             if (!conn) {
                 pkt->md.ct_state |= CS_TRACKED | CS_INVALID;
                 char *log_msg = xasprintf("Missing master conn %p", rev_conn);
-                ct_print_conn_info(conn, log_msg, VLL_INFO, true, true);
+                ct_print_conn_info(rev_conn, log_msg, VLL_INFO, true, true);
                 free(log_msg);
                 return;
             }