From e9d70dc030f0baf31bf3c8e33abdc46a8eac6824 Mon Sep 17 00:00:00 2001
From: Willem Toorop <willem@nlnetlabs.nl>
Date: Tue, 18 Feb 2014 14:38:46 +0100
Subject: [PATCH] Return INVALID_PARAMETER when upstreams is NULL

---
 src/context.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/context.c b/src/context.c
index f92db52f..a7c0b540 100644
--- a/src/context.c
+++ b/src/context.c
@@ -938,6 +938,7 @@ getdns_context_set_upstream_recursive_servers(struct getdns_context *context,
     size_t count = 0;
     size_t i = 0;
     RETURN_IF_NULL(context, GETDNS_RETURN_INVALID_PARAMETER);
+    RETURN_IF_NULL(upstream_list, GETDNS_RETURN_INVALID_PARAMETER);
     getdns_return_t r = getdns_list_get_length(upstream_list, &count);
     if (count == 0 || r != GETDNS_RETURN_GOOD) {
         return GETDNS_RETURN_CONTEXT_UPDATE_FAIL;