NTSTATUS
DiskRemoveDevice(
IN PDEVICE_OBJECT DeviceObject,
IN UCHAR Type
)
/*++
Routine Description:
This routine will release any resources the device may have allocated for
this device object and return.
Arguments:
DeviceObject - the device object being removed
Return Value:
status
--*/
{
PCOMMON_DEVICE_EXTENSION commonExtension = DeviceObject->DeviceExtension;
PFUNCTIONAL_DEVICE_EXTENSION fdoExtension = DeviceObject->DeviceExtension;
PAGED_CODE();
//
// Handle query and cancel
//
if((Type == IRP_MN_QUERY_REMOVE_DEVICE) ||
(Type == IRP_MN_CANCEL_REMOVE_DEVICE)) {
return STATUS_SUCCESS;
}
//
// Delete our object directory.
//
if(fdoExtension->DeviceDirectory != NULL) {
ZwMakeTemporaryObject(fdoExtension->DeviceDirectory);
ZwClose(fdoExtension->DeviceDirectory);
fdoExtension->DeviceDirectory = NULL;
}
if(Type == IRP_MN_REMOVE_DEVICE) {
FREE_POOL(fdoExtension->SenseData);
IoGetConfigurationInformation()->DiskCount--;
}
DiskDeleteSymbolicLinks(DeviceObject);
if (Type == IRP_MN_REMOVE_DEVICE)
{
ClassDeleteSrbLookasideList(commonExtension);
}
return STATUS_SUCCESS;
}
NTSTATUS
NTAPI
DiskRemoveDevice(
IN PDEVICE_OBJECT DeviceObject,
IN UCHAR Type
)
/*++
Routine Description:
This routine will release any resources the device may have allocated for
this device object and return.
Arguments:
DeviceObject - the device object being removed
Return Value:
status
--*/
{
PCOMMON_DEVICE_EXTENSION commonExtension = DeviceObject->DeviceExtension;
PDISK_DATA diskData = commonExtension->DriverData;
PAGED_CODE();
//
// Handle query and cancel
//
if((Type == IRP_MN_QUERY_REMOVE_DEVICE) ||
(Type == IRP_MN_CANCEL_REMOVE_DEVICE)) {
return STATUS_SUCCESS;
}
if(commonExtension->IsFdo) {
PFUNCTIONAL_DEVICE_EXTENSION fdoExtension =
DeviceObject->DeviceExtension;
//
// Purge the cached partition table (if any).
//
DiskAcquirePartitioningLock(fdoExtension);
DiskInvalidatePartitionTable(fdoExtension, TRUE);
DiskReleasePartitioningLock(fdoExtension);
//
// Delete our object directory.
//
if(fdoExtension->AdapterDescriptor) {
ExFreePool(fdoExtension->AdapterDescriptor);
fdoExtension->AdapterDescriptor = NULL;
}
if(fdoExtension->DeviceDescriptor) {
ExFreePool(fdoExtension->DeviceDescriptor);
fdoExtension->DeviceDescriptor = NULL;
}
if(fdoExtension->SenseData) {
ExFreePool(fdoExtension->SenseData);
fdoExtension->SenseData = NULL;
}
if(fdoExtension->DeviceDirectory != NULL) {
ZwMakeTemporaryObject(fdoExtension->DeviceDirectory);
ZwClose(fdoExtension->DeviceDirectory);
fdoExtension->DeviceDirectory = NULL;
}
if(Type == IRP_MN_REMOVE_DEVICE) {
IoGetConfigurationInformation()->DiskCount--;
}
} else {
//PPHYSICAL_DEVICE_EXTENSION pdoExtension = DeviceObject->DeviceExtension;
}
DiskDeleteSymbolicLinks(DeviceObject);
//
// Release the mounted device interface if we've set it.
//
if(diskData->PartitionInterfaceString.Buffer != NULL) {
IoSetDeviceInterfaceState(&(diskData->PartitionInterfaceString), FALSE);
RtlFreeUnicodeString(&(diskData->PartitionInterfaceString));
RtlInitUnicodeString(&(diskData->PartitionInterfaceString), NULL);
}
if(diskData->DiskInterfaceString.Buffer != NULL) {
IoSetDeviceInterfaceState(&(diskData->DiskInterfaceString), FALSE);
RtlFreeUnicodeString(&(diskData->DiskInterfaceString));
RtlInitUnicodeString(&(diskData->DiskInterfaceString), NULL);
}
ClassDeleteSrbLookasideList(commonExtension);
return STATUS_SUCCESS;
}
