session: fix feature disable

Type: fix

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I69e912ddf64d8ec89f8d93e02a201781b99de0bd
diff --git a/src/vnet/session/session_node.c b/src/vnet/session/session_node.c
index 346b9f4..482f8b0 100644
--- a/src/vnet/session/session_node.c
+++ b/src/vnet/session/session_node.c
@@ -1564,6 +1564,8 @@
 	  session_queue_run_on_main (vm);
 	  break;
 	case SESSION_Q_PROCESS_STOP:
+	  vlib_node_set_state (vm, session_queue_process_node.index,
+			       VLIB_NODE_STATE_DISABLED);
 	  timeout = 100000.0;
 	  break;
 	case ~0: