From 70d2e1a7606ef365b31ee5576dfa6064aeb22dec Mon Sep 17 00:00:00 2001
From: Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
Date: Wed, 10 Jun 2015 14:54:14 +0200
Subject: [PATCH] fix: only reset tc if it was initialized before

---
 server/src/if.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/server/src/if.c b/server/src/if.c
index 24431b3c2..1e3c0f537 100644
--- a/server/src/if.c
+++ b/server/src/if.c
@@ -94,7 +94,14 @@ int if_stop(struct interface *i)
 
 	{ INDENT
 		if_setaffinity(i, -1L);
-		tc_reset(i);
+		
+		/* Only reset tc if it was initialized before */
+		FOREACH(&i->sockets, it) {
+			if (it->socket->netem) {
+				tc_reset(i);
+				break;
+			}
+		}
 	}
 
 	return 0;