From e334f6c2758b4f8f2ca1016a4d6db1bd89252552 Mon Sep 17 00:00:00 2001
From: Sandy Stutsman <sstutsma@redhat.com>
Date: Mon, 2 Nov 2015 14:35:50 -0500
Subject: Use SrcPitch when calculating size of memory to map
 PresentDisplayOnly

Otherwise, can result in a BSOD.
---
 qxldod/QxlDod.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/qxldod/QxlDod.cpp b/qxldod/QxlDod.cpp
index 9d13934..7b60e0c 100755
--- a/qxldod/QxlDod.cpp
+++ b/qxldod/QxlDod.cpp
@@ -3606,7 +3606,7 @@ QxlDevice::ExecutePresentDisplayOnly(
 
     {
         // Map Source into kernel space, as Blt will be executed by system worker thread
-        UINT sizeToMap = SrcBytesPerPixel * ctx->SrcWidth * ctx->SrcHeight;
+        UINT sizeToMap = ctx->SrcPitch * ctx->SrcHeight;
 
         PMDL mdl = IoAllocateMdl((PVOID)SrcAddr, sizeToMap,  FALSE, FALSE, NULL);
         if(!mdl)
-- 
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