From 54ea3dbbcf39eec26519a6ef8246bd1d9c0cdbb1 Mon Sep 17 00:00:00 2001
From: Jeffrey Pfau <jeffrey@endrift.com>
Date: Mon, 14 Sep 2015 23:26:20 -0700
Subject: [PATCH] Util: Fix setjmp buffer for PNG failing in PNGWriteHeader

---
 src/util/png-io.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/util/png-io.c b/src/util/png-io.c
index 3e0ca13b1..b18b64202 100644
--- a/src/util/png-io.c
+++ b/src/util/png-io.c
@@ -43,6 +43,9 @@ png_infop PNGWriteHeader(png_structp png, unsigned width, unsigned height) {
 	if (!info) {
 		return 0;
 	}
+	if (setjmp(png_jmpbuf(png))) {
+		return 0;
+	}
 	png_set_IHDR(png, info, width, height, 8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
 	png_write_info(png, info);
 	return info;