ntoskrnl.exe: Support NULL offset in IoBuildSynchronousFsdRequest.

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

ntoskrnl.exe: Support NULL offset in IoBuildSynchronousFsdRequest.
73568dab · Jacek Caban · Alexandre Julliard · b781a00b · 73568dab
Commit 73568dab authored Apr 30, 2019 by Jacek Caban Committed by Alexandre Julliard Apr 30, 2019
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ntoskrnl.c dlls/ntoskrnl.exe/ntoskrnl.c +2 -2

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--- 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;