From e05305f8d8e6222250f18daf9b437b7faee8ebee Mon Sep 17 00:00:00 2001
From: Robin Watts <Robin.Watts@artifex.com>
Date: Fri, 5 Jul 2019 19:34:56 +0100
Subject: Destructors should cope with NULL.

---
 base/gxpcmap.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'base/gxpcmap.c')

diff --git a/base/gxpcmap.c b/base/gxpcmap.c
index 5b647bfe0..a05bab499 100644
--- a/base/gxpcmap.c
+++ b/base/gxpcmap.c
@@ -886,6 +886,8 @@ ensure_pattern_cache(gs_gstate * pgs)
 void
 gx_pattern_cache_free(gx_pattern_cache *pcache)
 {
+    if (pcache == NULL)
+        return;
     pattern_cache_free_all(pcache);
     gs_free_object(pcache->memory, pcache->tiles, "gx_pattern_cache_free");
     pcache->tiles = NULL;
-- 
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