added safety check (should never happen style)

[rocksndiamonds.git] / src / libgame / setup.c

diff --git a/src/libgame/setup.c b/src/libgame/setup.c
index 315c615f28b41395bb9e89b779f0b0ef587832d4..d867ebbae239e3245939f2a063261ae83fc97b33 100644 (file)
--- a/src/libgame/setup.c
+++ b/src/libgame/setup.c
@@ -4547,10 +4547,14 @@ void UpdateLastPlayedLevels_TreeInfo(void)
 
   freeTreeInfo(*node_new);
 
+  *node_new = NULL;
+
   for (i = 0; last_level_series[i] != NULL; i++)
   {
     LevelDirTree *node_last = getTreeInfoFromIdentifier(leveldir_first,
                                                        last_level_series[i]);
+    if (node_last == NULL)
+      continue;
 
     *node_new = getTreeInfoCopy(node_last);    // copy complete node