From 204b4d6b934a45c9e10362e77b5828ff08a25fab Mon Sep 17 00:00:00 2001
From: Enno Rehling <enno.rehling@gmail.com>
Date: Fri, 30 Oct 2015 12:52:18 +0100
Subject: [PATCH] CID 22505: Dereference null return value (NULL_RETURNS)
 potential bugs at the edge of the map

---
 src/spells.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/spells.c b/src/spells.c
index d9f7f4b10..abb938780 100644
--- a/src/spells.c
+++ b/src/spells.c
@@ -5954,7 +5954,7 @@ int sp_movecastle(castorder * co)
 
     target_region = rconnect(r, dir);
 
-    if (!(target_region->terrain->flags & LAND_REGION)) {
+    if (!target_region || !(target_region->terrain->flags & LAND_REGION)) {
         ADDMSG(&mage->faction->msgs, msg_feedback(mage, co->order,
             "sp_movecastle_fail_1", "direction", dir));
         return cast_level;