VOID __stdcall IopDisableTimer(_IO_TIMER *Timer){
int v2;
unsigned __int64 v3;
v2 = 0;
v3 = (unsigned __int8)KeAcquireSpinLockRaiseToDpc(&IopTimerLock);
if( Timer->TimerFlag )
{
Timer->TimerFlag = 0;
if( !--*(&stru_140C452E0 + 524) )
v2 = 1;
}
KxReleaseSpinLock(&IopTimerLock);
__writecr8(v3);
if( v2 )
KeCancelTimer((INT64)&stru_140C452E0 + 2112);
}