Index: drivers/net/tcpip/datalink/lan.c
===================================================================
RCS file: /CVS/ReactOS/reactos/drivers/net/tcpip/datalink/lan.c,v
retrieving revision 1.31
diff -u -r1.31 lan.c
--- drivers/net/tcpip/datalink/lan.c	4 Dec 2004 23:29:55 -0000	1.31
+++ drivers/net/tcpip/datalink/lan.c	5 Dec 2004 14:36:57 -0000
@@ -273,14 +273,18 @@
     BOOLEAN WorkStart;
     PLAN_WQ_ITEM WQItem;
     PLAN_ADAPTER Adapter = (PLAN_ADAPTER)BindingContext;
+    KIRQL OldIrql;
 
     ASSERT(KeGetCurrentIrql() == DISPATCH_LEVEL);
 
     if( Status != NDIS_STATUS_SUCCESS ) return;
+    TcpipAcquireSpinLock( &LanWorkLock, &OldIrql );
     WQItem = ExAllocatePool( NonPagedPool, sizeof(LAN_WQ_ITEM) );
-    if( !WQItem ) return;
+    if( !WQItem ) {
+	TcpipReleaseSpinLock( &LanWorkLock, OldIrql );
+	return;
+    }
 
-    TcpipAcquireSpinLockAtDpcLevel( &LanWorkLock );
     WorkStart = IsListEmpty( &LanWorkList );
     WQItem->Packet = Packet;
     WQItem->Adapter = Adapter;
@@ -288,7 +292,7 @@
     InsertTailList( &LanWorkList, &WQItem->ListEntry );
     if( WorkStart )
 	ExQueueWorkItem( &LanWorkItem, CriticalWorkQueue );
-    TcpipReleaseSpinLockFromDpcLevel( &LanWorkLock );
+    TcpipReleaseSpinLock( &LanWorkLock, OldIrql );
 }
 
 NDIS_STATUS STDCALL ProtocolReceive(
@@ -322,6 +326,7 @@
     PNDIS_PACKET NdisPacket;
     PLAN_ADAPTER Adapter = (PLAN_ADAPTER)BindingContext;
     PETH_HEADER EHeader  = (PETH_HEADER)HeaderBuffer;
+    KIRQL OldIrql;
 
     TI_DbgPrint(DEBUG_DATALINK, ("Called. (packetsize %d)\n",PacketSize));
 
@@ -359,9 +364,12 @@
     TI_DbgPrint(DEBUG_DATALINK, ("Adapter: %x (MTU %d)\n", 
 				 Adapter, Adapter->MTU));
 
+    TcpipAcquireSpinLock( &LanWorkLock, &OldIrql );
+
     NdisStatus = AllocatePacketWithBuffer( &NdisPacket, NULL,
                                            PacketSize + HeaderBufferSize );
     if( NdisStatus != NDIS_STATUS_SUCCESS ) {
+	TcpipReleaseSpinLock( &LanWorkLock, OldIrql );
 	return NDIS_STATUS_NOT_ACCEPTED;
     }
 
@@ -407,6 +415,7 @@
 				     PacketSize);
 
     TI_DbgPrint(DEBUG_DATALINK, ("leaving\n"));
+    TcpipReleaseSpinLock( &LanWorkLock, OldIrql );
 
     return NDIS_STATUS_SUCCESS;
 }