From 0340567af86574957032511f745355013f0aea60 Mon Sep 17 00:00:00 2001
From: Simon Duquennoy <simonduq@sics.se>
Date: Thu, 1 Oct 2015 12:00:25 +0200
Subject: [PATCH] tapdev6.c: do not ignore return value of system()

---
 cpu/native/net/tapdev6.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/cpu/native/net/tapdev6.c b/cpu/native/net/tapdev6.c
index 8ff74e09c..d69ac290e 100644
--- a/cpu/native/net/tapdev6.c
+++ b/cpu/native/net/tapdev6.c
@@ -331,7 +331,10 @@ tapdev_init(void)
   */
   /* freebsd */
   snprintf(buf, sizeof(buf), "ifconfig tap0 up");
-  system(buf);
+  if(system(buf) == -1) {
+    perror("tapdev: system: ifconfig");
+    return;
+  }
   printf("%s\n", buf);
   
   /*  */