MiDeleteHotPatchRecord

NTSTATUS __stdcall MiDeleteHotPatchRecord(_RTL_BALANCED_NODE **Tree, ULONG_PTR a2, INT64 a3, INT64 a4){
  INT64 *v4; 
  _ETHREAD *CurrentThread; 
  INT64 *v8; 
  NTSTATUS v9; 
  int v10; 
  INT64 v12[3]; 
  int v13; 
  int v14; 
  __int128 v15; 

  v4 = 0i64;
  v13 = a3;
  v14 = a4;
  memset(v12, 0, sizeof(v12));
  v15 = 0i64;
  if( a2 )
  {
    CurrentThread = 0i64;
  }
  else
  {
    CurrentThread = (_ETHREAD *)KeGetCurrentThread();
    --CurrentThread->Tcb.SpecialApcDisable;
    ExAcquirePushLockExclusiveEx(&MiHotPatchListLock, *(UINT64 *)&a2);
  }
  v8 = (INT64 *)*Tree;
  if( *Tree )
  {
    do
    {
      v9 = MiCompareHotPatchNodes((INT64)v12, (INT64)v8);
      if( v9 >= 0 )
      {
        if( v9 <= 0 )
          break;
        v8 = (INT64 *)v8[1];
      }
      else
      {
        v8 = (INT64 *)*v8;
      }
    }
    while( v8 );
    if( v8 )
    {
      v4 = v8;
      RtlAvlRemoveNode((UINT64 *)Tree, v8);
      v10 = 1;
      if( MiHotPatchGeneration != -1 )
        v10 = MiHotPatchGeneration + 1;
      MiHotPatchGeneration = v10;
    }
  }
  if( !a2 )
  {
    if( (_InterlockedExchangeAdd64(&MiHotPatchListLock._bf_0, 0xFFFFFFFFFFFFFFFFui64) & 6) == 2 )
      ExfTryToWakePushLock(&MiHotPatchListLock);
    KeAbPostRelease(&MiHotPatchListLock);
    KiLeaveGuardedRegionUnsafe((__int64)CurrentThread);
  }
  if( !v4 )
    return 0;
  ExFreePoolWithTag(v4, 0);
  return 1;
}

Referenced by: