From b3ca6589eb58dcb15fdd7939694a4024e63b7ec5 Mon Sep 17 00:00:00 2001
From: Dave Barach <dave@barachs.net>
Date: Fri, 10 Jun 2016 18:31:55 -0400
Subject: [PATCH] Return 0 if no tap interfaces are ready

Otherwise, if tapcli-rx manages to make it into polled-mode, it will
never leave polled mode. This has been wrong since day 1, sometime in
early 2013.

Change-Id: I124e01a48db5abbc4eb5240c8d59f76dc562e9f2
Signed-off-by: Dave Barach <dave@barachs.net>
---
 vnet/vnet/unix/tapcli.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/vnet/vnet/unix/tapcli.c b/vnet/vnet/unix/tapcli.c
index 1d5beba1b78..7856b05751f 100644
--- a/vnet/vnet/unix/tapcli.c
+++ b/vnet/vnet/unix/tapcli.c
@@ -369,7 +369,7 @@ tapcli_rx (vlib_main_t * vm,
   }));
 
   if (vec_len (ready_interface_indices) == 0)
-    return 1;
+    return 0;
 
   for (i = 0; i < vec_len(ready_interface_indices); i++)
   {