From de2c9af677acafd3ad225eacb13b6c3474040d2e Mon Sep 17 00:00:00 2001
From: Nicky <none@none>
Date: Mon, 26 Aug 2013 22:16:42 +0200
Subject: [PATCH] Backout of c0f5f3933a72. That call is likely okay and the
 driver crash is due to some other reason way before that.

---
 indra/llrender/llvertexbuffer.cpp | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/indra/llrender/llvertexbuffer.cpp b/indra/llrender/llvertexbuffer.cpp
index 2a2efa52ab..57a6aff275 100755
--- a/indra/llrender/llvertexbuffer.cpp
+++ b/indra/llrender/llvertexbuffer.cpp
@@ -2016,14 +2016,7 @@ void LLVertexBuffer::unmapBuffer()
 				{
 					const MappedRegion& region = mMappedIndexRegions[i];
 					S32 offset = region.mIndex >= 0 ? sizeof(U16)*region.mIndex : 0;
-
-					// <FS:ND> If offset is greater zero, we cannot cannot copy all of region.mCount
-
-					// S32 length = sizeof(U16)*region.mCount;
-					S32 length = sizeof(U16)*region.mCount - offset;
-
-					// </FS:ND>
-
+					S32 length = sizeof(U16)*region.mCount;
 					glBufferSubDataARB(GL_ELEMENT_ARRAY_BUFFER_ARB, offset, length, (U8*) mMappedIndexData+offset);
 					stop_glerror();
 				}