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Release MDL on IRP-completion. Thanks to Hartmut Birr.

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svn path=/trunk/; revision=2874
This commit is contained in:
Eric Kohl 2002-04-27 19:01:24 +00:00
parent 4e09f73d4d
commit e2ccc04cc8
1 changed files with 13 additions and 7 deletions
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20
reactos/drivers/storage/class2/class2.c
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@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: class2.c,v 1.16 2002/04/24 22:20:50 ekohl Exp $
/* $Id: class2.c,v 1.17 2002/04/27 19:01:24 ekohl Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -876,6 +876,15 @@ ScsiClassIoComplete(PDEVICE_OBJECT DeviceObject,
}
}
/* Free the IRP's MDL */
if (Irp->MdlAddress->MappedSystemVa != NULL)
{
MmUnmapLockedPages(Irp->MdlAddress->MappedSystemVa,
Irp->MdlAddress);
}
MmUnlockPages(Irp->MdlAddress);
ExFreePool(Irp->MdlAddress);
/* FIXME: use lookaside list instead */
DPRINT("Freed SRB %p\n", IrpStack->Parameters.Scsi.Srb);
ExFreePool(IrpStack->Parameters.Scsi.Srb);
@ -1165,7 +1174,6 @@ ScsiClassSendSrbSynchronous(PDEVICE_OBJECT DeviceObject,
PIRP Irp;
NTSTATUS Status;
DPRINT("ScsiClassSendSrbSynchronous() called\n");
RetryCount = MAXIMUM_RETRIES;
@ -1299,7 +1307,7 @@ ScsiClassSplitRequest(PDEVICE_OBJECT DeviceObject,
ULONG DataLength;
ULONG i;
DPRINT1("ScsiClassSplitRequest(DeviceObject %lx Irp %lx MaximumBytes %lu)\n",
DPRINT("ScsiClassSplitRequest(DeviceObject %lx Irp %lx MaximumBytes %lu)\n",
DeviceObject, Irp, MaximumBytes);
DeviceExtension = DeviceObject->DeviceExtension;
@ -1316,7 +1324,7 @@ ScsiClassSplitRequest(PDEVICE_OBJECT DeviceObject,
/* Save request count in the original IRP */
NextStack->Parameters.Others.Argument1 = (PVOID)RequestCount;
DPRINT1("RequestCount %lu\n", RequestCount);
DPRINT("RequestCount %lu\n", RequestCount);
for (i = 0; i < RequestCount; i++)
{
@ -1479,8 +1487,6 @@ ScsiClassReadWrite(IN PDEVICE_OBJECT DeviceObject,
return(STATUS_PENDING);
}
IoMarkIrpPending(Irp);
/* Adjust partition-relative starting offset to absolute offset */
IrpStack->Parameters.Read.ByteOffset.QuadPart += DeviceExtension->StartingOffset.QuadPart;
@ -1492,7 +1498,7 @@ ScsiClassReadWrite(IN PDEVICE_OBJECT DeviceObject,
if (CurrentTransferLength > MaximumTransferLength ||
CurrentTransferPages > MaximumTransferPages)
{
DPRINT1("Split current request: MaximumTransferLength %lu CurrentTransferLength %lu\n",
DPRINT("Split current request: MaximumTransferLength %lu CurrentTransferLength %lu\n",
MaximumTransferLength, CurrentTransferLength);
/* Adjust the maximum transfer length */