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Check for removable media and Partition length is 0, for DiskClassCheckReadWrite.

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svn path=/trunk/; revision=13768
This commit is contained in:
James Tabor 2005-02-27 21:17:24 +00:00
parent 2e93c2f4d9
commit ab1066da6a
1 changed files with 16 additions and 0 deletions
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16
reactos/drivers/storage/disk/disk.c
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@ -406,10 +406,26 @@ DiskClassCheckReadWrite(IN PDEVICE_OBJECT DeviceObject,
return(STATUS_INVALID_PARAMETER);
}
IrpStack = IoGetCurrentIrpStackLocation(Irp);
EndingOffset.QuadPart = IrpStack->Parameters.Read.ByteOffset.QuadPart +
IrpStack->Parameters.Read.Length;
DPRINT("Ending %I64d, and RealEnding %I64d! PartSize %I64d\n",EndingOffset.QuadPart,
DeviceExtension->PartitionLength.QuadPart,
DeviceExtension->PartitionLength.QuadPart /
DeviceExtension->DiskGeometry->BytesPerSector);
if ((DeviceObject->Characteristics & FILE_REMOVABLE_MEDIA) &&
(DeviceExtension->DiskGeometry->MediaType == RemovableMedia))
{
/* Assume if removable media and if Partition length is 0, Partition not built yet! */
if (DeviceExtension->PartitionLength.QuadPart == 0)
return(STATUS_SUCCESS);
}
if (EndingOffset.QuadPart > DeviceExtension->PartitionLength.QuadPart)
{
Irp->IoStatus.Status = STATUS_INVALID_PARAMETER;