From 8198127b2525084bfe2378b83c185fa0da7f583b Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Tue, 1 Jan 2013 20:20:31 -0600
Subject: [PATCH] Don't crash in FcPatternFormat() with NULL pattern

---
 src/fcformat.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/fcformat.c b/src/fcformat.c
index a8a1ad1..59f8681 100644
--- a/src/fcformat.c
+++ b/src/fcformat.c
@@ -1193,15 +1193,19 @@ FcPatternFormat (FcPattern *pat,
 {
     FcStrBuf        buf;
     FcChar8         buf_static[8192 - 1024];
+    FcPattern      *alloced = NULL;
     FcBool          ret;
 
     if (!pat)
-	return NULL;
+	alloced = pat = FcPatternCreate ();
 
     FcStrBufInit (&buf, buf_static, sizeof (buf_static));
 
     ret = FcPatternFormatToBuf (pat, format, &buf);
 
+    if (alloced)
+      FcPatternDestroy (alloced);
+
     if (ret)
 	return FcStrBufDone (&buf);
     else