session: add session stats

Type: feature

Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
Change-Id: I02d9bb5292b32ffb1b2f05daccd8a7d5dba05125
diff --git a/src/vnet/session/application_worker.c b/src/vnet/session/application_worker.c
index 0cb1791..1927f2f 100644
--- a/src/vnet/session/application_worker.c
+++ b/src/vnet/session/application_worker.c
@@ -480,6 +480,7 @@
 {
   segment_manager_t *sm;
   svm_fifo_t *rxf, *txf;
+  int rv;
 
   if (s->session_state == SESSION_STATE_LISTENING)
     return application_change_listener_owner (s, app_wrk);
@@ -496,8 +497,8 @@
   s->tx_fifo = 0;
 
   sm = app_worker_get_connect_segment_manager (app_wrk);
-  if (app_worker_alloc_session_fifos (sm, s))
-    return -1;
+  if ((rv = app_worker_alloc_session_fifos (sm, s)))
+    return rv;
 
   if (!svm_fifo_is_empty_cons (rxf))
     svm_fifo_clone (s->rx_fifo, rxf);