Jacek Caban : ntoskrnl.exe: Support NULL offset in IoBuildSynchronousFsdRequest.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 73568dab0b8a82e510f805a91c4d19b843726e37
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=73568dab0b8a82e510f805a91...

Author: Jacek Caban <jacek(a)codeweavers.com>
Date:   Tue Apr 30 16:37:03 2019 +0200

ntoskrnl.exe: Support NULL offset in IoBuildSynchronousFsdRequest.

Signed-off-by: Jacek Caban <jacek(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 dlls/ntoskrnl.exe/ntoskrnl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dlls/ntoskrnl.exe/ntoskrnl.c b/dlls/ntoskrnl.exe/ntoskrnl.c
index 6e00041..0bb83cb 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.c
+++ b/dlls/ntoskrnl.exe/ntoskrnl.c
@@ -1361,11 +1361,11 @@ PIRP WINAPI IoBuildSynchronousFsdRequest(ULONG majorfunc, PDEVICE_OBJECT device,
     {
     case IRP_MJ_READ:
         irpsp->Parameters.Read.Length = length;
-        irpsp->Parameters.Read.ByteOffset = *startoffset;
+        irpsp->Parameters.Read.ByteOffset.QuadPart = startoffset ? startoffset->QuadPart : 0;
         break;
     case IRP_MJ_WRITE:
         irpsp->Parameters.Write.Length = length;
-        irpsp->Parameters.Write.ByteOffset = *startoffset;
+        irpsp->Parameters.Write.ByteOffset.QuadPart = startoffset ? startoffset->QuadPart : 0;
         break;
     }
     irp->RequestorMode = KernelMode;