From 19c3072e4efacf4949540c10f377b78ddb047671 Mon Sep 17 00:00:00 2001
From: monsta <monsta@inbox.ru>
Date: Sun, 16 Dec 2018 12:26:39 +0300
Subject: tiff: fix possible NULL pointer dereference

---
 backend/tiff/tiff2ps.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/backend/tiff/tiff2ps.c b/backend/tiff/tiff2ps.c
index 3733645d..f8933674 100644
--- a/backend/tiff/tiff2ps.c
+++ b/backend/tiff/tiff2ps.c
@@ -1542,12 +1542,13 @@ PSDataBW(TIFF2PSContext* ctx, TIFF* tif, uint32 w, uint32 h)
 
 	(void) w; (void) h;
 	tf_buf = (unsigned char *) _TIFFmalloc(stripsize);
-        memset(tf_buf, 0, stripsize);
 	if (tf_buf == NULL) {
 		TIFFError(ctx->filename, "No space for scanline buffer");
 		return;
 	}
 
+        memset(tf_buf, 0, stripsize);
+
 #if defined( EXP_ASCII85ENCODER )
 	if ( ctx->ascii85 ) {
 	    /*
-- 
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