From: Thomas Debesse <dev@illwieckz.net>
Date: Tue, 14 Jan 2020 05:52:08 +0000 (+0100)
Subject: LoadPNGBuffer: use safe_malloc0 to allocate a zeored imate buffer
X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=a72f2479af933c41253c30b3d4d1760d97230964;p=xonotic%2Fnetradiant.git

LoadPNGBuffer: use safe_malloc0 to allocate a zeored imate buffer

valgrind reports there may be issues if this is not initialized
---

diff --git a/tools/quake3/q3map2/image.c b/tools/quake3/q3map2/image.c
index e5f97a40..36658b86 100644
--- a/tools/quake3/q3map2/image.c
+++ b/tools/quake3/q3map2/image.c
@@ -230,7 +230,8 @@ static void LoadPNGBuffer( byte *buffer, int size, byte **pixels, int *width, in
 	/* create image pixel buffer */
 	*width = w;
 	*height = h;
-	*pixels = safe_malloc( w * h * 4 );
+	/* initialize with zeros, this memory area may not be entirely rewritten */
+	*pixels = safe_malloc0( w * h * 4 );
 
 	/* create row pointers */
 	rowPointers = safe_malloc( h * sizeof( byte* ) );
@@ -243,7 +244,6 @@ static void LoadPNGBuffer( byte *buffer, int size, byte **pixels, int *width, in
 	/* clean up */
 	free( rowPointers );
 	png_destroy_read_struct( &png, &info, &end );
-
 }