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- Release the lock while accessing pageable user mode buffers in NtReplyWaitReceivePortEx.

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svn path=/trunk/; revision=4908
This commit is contained in:
Hartmut Birr 2003-06-16 19:17:08 +00:00
parent b13e656c10
commit 5f1dae9d19
1 changed files with 7 additions and 4 deletions
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11
reactos/ntoskrnl/lpc/reply.c
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@ -1,4 +1,4 @@
/* $Id: reply.c,v 1.14 2003/05/01 22:00:31 gvg Exp $
/* $Id: reply.c,v 1.15 2003/06/16 19:17:08 hbirr Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -233,7 +233,8 @@ NtReplyWaitReceivePortEx(IN HANDLE PortHandle,
*/
KeAcquireSpinLock(&Port->Lock, &oldIrql);
Request = EiDequeueMessagePort(Port);
KeReleaseSpinLock(&Port->Lock, oldIrql);
if (Request->Message.MessageType == LPC_CONNECTION_REQUEST)
{
LPC_MESSAGE Header;
@ -244,7 +245,7 @@ NtReplyWaitReceivePortEx(IN HANDLE PortHandle,
Header.DataSize = CRequest->ConnectDataLength;
Header.MessageSize = Header.DataSize + sizeof(LPC_MESSAGE);
Status = MmCopyToCaller(LpcMessage, &Header, sizeof(LPC_MESSAGE));
if (!NT_SUCCESS(Status))
if (NT_SUCCESS(Status))
{
Status = MmCopyToCaller((PVOID)(LpcMessage + 1),
CRequest->ConnectData,
@ -263,6 +264,7 @@ NtReplyWaitReceivePortEx(IN HANDLE PortHandle,
* undo what we did and return.
* FIXME: Also increment semaphore.
*/
KeAcquireSpinLock(&Port->Lock, &oldIrql);
EiEnqueueMessageAtHeadPort(Port, Request);
KeReleaseSpinLock(&Port->Lock, oldIrql);
ObDereferenceObject(Port);
@ -270,12 +272,12 @@ NtReplyWaitReceivePortEx(IN HANDLE PortHandle,
}
if (Request->Message.MessageType == LPC_CONNECTION_REQUEST)
{
KeAcquireSpinLock(&Port->Lock, &oldIrql);
EiEnqueueConnectMessagePort(Port, Request);
KeReleaseSpinLock(&Port->Lock, oldIrql);
}
else
{
KeReleaseSpinLock(&Port->Lock, oldIrql);
ExFreePool(Request);
}
@ -335,6 +337,7 @@ NtReplyWaitReplyPort (HANDLE PortHandle,
PLPC_MESSAGE ReplyMessage)
{
UNIMPLEMENTED;
return(STATUS_NOT_IMPLEMENTED);
}