From c681e13dae6699b4cdb0b690ff5ab0b3d8cb0464 Mon Sep 17 00:00:00 2001
From: Eric Kohl <eric.kohl@reactos.org>
Date: Sat, 4 Jul 2015 16:10:50 +0000
Subject: [PATCH] [USETUP] Assign the HiddenSectors values properly.

svn path=/trunk/; revision=68340
---
 reactos/base/setup/usetup/partlist.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/reactos/base/setup/usetup/partlist.c b/reactos/base/setup/usetup/partlist.c
index d3db63d4557..8d6737143cb 100644
--- a/reactos/base/setup/usetup/partlist.c
+++ b/reactos/base/setup/usetup/partlist.c
@@ -2327,6 +2327,7 @@ UpdateDiskLayout(
     PPARTITION_INFORMATION LinkInfo = NULL;
     PLIST_ENTRY ListEntry;
     PPARTENTRY PartEntry;
+    LARGE_INTEGER HiddenSectors64;
     ULONG Index;
     ULONG PartitionNumber = 1;
 
@@ -2356,7 +2357,7 @@ UpdateDiskLayout(
 
                 PartitionInfo->StartingOffset.QuadPart = PartEntry->StartSector.QuadPart * DiskEntry->BytesPerSector;
                 PartitionInfo->PartitionLength.QuadPart = PartEntry->SectorCount.QuadPart * DiskEntry->BytesPerSector;
-                PartitionInfo->HiddenSectors = (ULONG)PartEntry->StartSector.QuadPart;
+                PartitionInfo->HiddenSectors = PartEntry->StartSector.LowPart;
                 PartitionInfo->PartitionNumber = (!IsContainerPartition(PartEntry->PartitionType)) ? PartitionNumber : 0;
                 PartitionInfo->PartitionType = PartEntry->PartitionType;
                 PartitionInfo->BootIndicator = PartEntry->BootIndicator;
@@ -2406,7 +2407,8 @@ UpdateDiskLayout(
             {
                 LinkInfo->StartingOffset.QuadPart = (PartEntry->StartSector.QuadPart - DiskEntry->SectorAlignment) * DiskEntry->BytesPerSector;
                 LinkInfo->PartitionLength.QuadPart = (PartEntry->StartSector.QuadPart + DiskEntry->SectorAlignment) * DiskEntry->BytesPerSector;
-                LinkInfo->HiddenSectors = (ULONG)(PartEntry->StartSector.QuadPart - DiskEntry->SectorAlignment - DiskEntry->ExtendedPartition->StartSector.QuadPart);
+                HiddenSectors64.QuadPart = PartEntry->StartSector.QuadPart - DiskEntry->SectorAlignment - DiskEntry->ExtendedPartition->StartSector.QuadPart;
+                LinkInfo->HiddenSectors = HiddenSectors64.LowPart;
                 LinkInfo->PartitionNumber = 0;
                 LinkInfo->PartitionType = PARTITION_EXTENDED;
                 LinkInfo->BootIndicator = FALSE;