# HG changeset patch
# User Matti Hamalainen <ccr@tnsp.org>
# Date 1353334237 -7200
# Node ID 486067f39bc16ed7ba8ea26a6ea78bcb8da9d8b1
# Parent  95a6b6af53f12d4b7940484b4326523310d2f271
Add sanity checking.

diff -r 95a6b6af53f1 -r 486067f39bc1 lib64gfx.c
--- a/lib64gfx.c	Mon Nov 19 15:53:16 2012 +0200
+++ b/lib64gfx.c	Mon Nov 19 16:10:37 2012 +0200
@@ -433,6 +433,9 @@
 {
     int i;
 
+    if (buf == NULL || img == NULL || fmt == NULL)
+        return DMERR_NULLPTR;
+
     memset(img, 0, sizeof(*img));
     img->type = fmt->type;