From 7a8e0a29359f561e7e2f22ab553f5136c361239e Mon Sep 17 00:00:00 2001
From: "Timothy B. Terriberry" <tterribe@xiph.org>
Date: Wed, 5 May 2010 19:14:36 -0400
Subject: [PATCH] Fix harmless off-by-1 error.

The memory being zeroed in vp8_update_mode_info_border() was just
 allocated with calloc, and so the entire function is actually
 redundant, but it should be made correct in case someone expects
 it to actually work in the future.

Change-Id: If7a84e489157ab34ab77ec6e2fe034fb71cf8c79
---
 vp8/common/alloccommon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/vp8/common/alloccommon.c b/vp8/common/alloccommon.c
index 369d48101..3fcc3088c 100644
--- a/vp8/common/alloccommon.c
+++ b/vp8/common/alloccommon.c
@@ -24,7 +24,7 @@ extern  void vp8_init_scan_order_mask();
 void vp8_update_mode_info_border(MODE_INFO *mi, int rows, int cols)
 {
     int i;
-    vpx_memset(mi - cols - 1, 0, sizeof(MODE_INFO) * cols + 1);
+    vpx_memset(mi - cols - 2, 0, sizeof(MODE_INFO) * (cols + 1));
 
     for (i = 0; i < rows; i++)
     {