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[RAMDISK]

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Implement RamdiskQueryDeviceRelations() when the device is a drive

According to Hervé, this allows booting ReactOS livecd using PXE (with one of his patch).

svn path=/trunk/; revision=65902
This commit is contained in:
Pierre Schweitzer 2014-12-29 23:14:42 +00:00
parent 9532ddd779
commit b9f5240173
1 changed files with 37 additions and 2 deletions
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39
reactos/drivers/storage/class/ramdisk/ramdisk.c
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@ -1731,10 +1731,45 @@ RamdiskQueryDeviceRelations(IN DEVICE_RELATION_TYPE Type,
DeviceExtension = DeviceObject->DeviceExtension;
if (DeviceExtension->Type == RamdiskDrive)
{
NTSTATUS Status;
PDEVICE_RELATIONS DeviceRelations;
//
// FIXME: TODO
// We're a child device, only handle target device relations
//
UNIMPLEMENTED_DBGBREAK();
if (Type != TargetDeviceRelation)
{
Status = Irp->IoStatus.Status;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return Status;
}
//
// Allocate a buffer big enough to contain only one DO
//
DeviceRelations = ExAllocatePoolWithTag(PagedPool, sizeof(DeviceRelations), 'dmaR');
if (DeviceRelations != NULL)
{
//
// Reference the DO and add it to the buffer
//
ObReferenceObject(DeviceObject);
DeviceRelations->Objects[0] = DeviceObject;
DeviceRelations->Count = 1;
Status = STATUS_SUCCESS;
}
else
{
Status = STATUS_INSUFFICIENT_RESOURCES;
}
//
// Return our processing & complete
//
Irp->IoStatus.Information = (ULONG_PTR)DeviceRelations;
Irp->IoStatus.Status = Status;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return Status;
}
//