-user apc was called with incorrect SystemParameter1

svn path=/trunk/; revision=6832

reactos/ntoskrnl/io/cleanup.c

@@ -147,7 +147,10 @@ IoSecondStageCompletion_KernelApcRoutine(
     IN OUT PVOID *SystemArgument2
     )
 {
-   IoFreeIrp((PIRP)(*SystemArgument1));
+   PIRP Irp;
+
+   Irp = CONTAINING_RECORD(Apc, IRP, Tail.Apc);
+   IoFreeIrp(Irp);
 }
 
 
@@ -190,8 +193,7 @@ IoSecondStageCompletion(
    /* 
    Remove synchronous irp's from the threads cleanup list.
    To synchronize with the code inserting the entry, this code must run 
-   at APC_LEVEL, thou this routine is currently (incorrecly?) called at
-   irql's from 0 to 2.
+   at APC_LEVEL
    */
    if (!IsListEmpty(&Irp->ThreadListEntry))
    {
@@ -289,7 +291,7 @@ IoSecondStageCompletion(
                         UserApcContext);
 
       KeInsertQueueApc( &Irp->Tail.Apc,
-                        Irp,
+                        Irp->UserIosb,
                         NULL,
                         PriorityBoost);