From 53e2672e1169883983cd3efba3ced2d644ad4ffa Mon Sep 17 00:00:00 2001
From: Harald Welte <laforge@gnumonks.org>
Date: Wed, 4 Jan 2017 11:18:59 +0100
Subject: [PATCH] lapd_test: avoid calling memcpy with NULL source

fixes
lapd/lapd_test.c:54:2: runtime error: null pointer passed as argument 2, which is declared to never be null

Change-Id: I7030729f4f4c867adecc7afc15bb5ca9beff0030
---
 tests/lapd/lapd_test.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tests/lapd/lapd_test.c b/tests/lapd/lapd_test.c
index 18ea1dc3d..e3223143b 100644
--- a/tests/lapd/lapd_test.c
+++ b/tests/lapd/lapd_test.c
@@ -51,7 +51,8 @@ static struct msgb *msgb_from_array(const uint8_t *data, int len)
 {
 	struct msgb *msg = msgb_alloc_headroom(4096, 128, "data");
 	msg->l3h = msgb_put(msg, len);
-	memcpy(msg->l3h, data, len);
+	if (data && len)
+		memcpy(msg->l3h, data, len);
 	return msg;
 }