From eebc21c8de08d58c806fcd3d0f3a5aedee867776 Mon Sep 17 00:00:00 2001
From: Michiharu Ariza <ariza@adobe.com>
Date: Wed, 20 Feb 2019 12:43:18 -0800
Subject: [PATCH] fix crash in hb_map_t::clear()

in case called immediately after init()
---
 src/hb-map.hh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/hb-map.hh b/src/hb-map.hh
index 02d5406..fd5c6d8 100644
--- a/src/hb-map.hh
+++ b/src/hb-map.hh
@@ -170,7 +170,8 @@ struct hb_map_t
 
   void clear ()
   {
-    memset (items, 0xFF, ((size_t) mask + 1) * sizeof (item_t));
+    if (items)
+      memset (items, 0xFF, ((size_t) mask + 1) * sizeof (item_t));
     population = occupancy = 0;
   }
 
-- 
2.7.4