added null pointer check to gadget function

diff --git a/src/libgame/gadgets.c b/src/libgame/gadgets.c
index 668641bd30be64133832e37550cbc06eccedd803..a797c75475a1a9b41bf9f6cb2e25a79a67f5f406 100644 (file)
--- a/src/libgame/gadgets.c
+++ b/src/libgame/gadgets.c
@@ -1481,7 +1481,7 @@ static boolean insideSelectboxArea(struct GadgetInfo *gi, int mx, int my)
 
 void ClickOnGadget(struct GadgetInfo *gi, int button)
 {
-  if (!gi->mapped)
+  if (gi == NULL || gi->deactivated || !gi->mapped)
     return;
 
   /* simulate releasing mouse button over last gadget, if still pressed */