From 5961106f9ffd9e9a2bc23e4bd700f6ce07505c9a Mon Sep 17 00:00:00 2001
From: kwolekr <kwolekr@minetest.net>
Date: Sun, 7 Apr 2013 01:50:20 -0400
Subject: [PATCH] Fix crash on creating map with invalid mg_name

---
 src/emerge.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/emerge.cpp b/src/emerge.cpp
index 2a5e84f6..499aaf29 100644
--- a/src/emerge.cpp
+++ b/src/emerge.cpp
@@ -243,6 +243,8 @@ MapgenParams *EmergeManager::createMapgenParams(std::string mgname) {
 MapgenParams *EmergeManager::getParamsFromSettings(Settings *settings) {
 	std::string mg_name = settings->get("mg_name");
 	MapgenParams *mgparams = createMapgenParams(mg_name);
+	if (!mgparams)
+		return NULL;
 	
 	mgparams->mg_name     = mg_name;
 	mgparams->seed        = settings->getU64(settings == g_settings ? "fixed_map_seed" : "seed");