INT64 __fastcall PiIommuBlockDevice(INT64 a1){
INT64 result;
if( (*(_BYTE *)(a1 + 16) & 2) == 0 )
return 0i64;
result = ((__int64(__fastcall *)(_QWORD))off_140C009C0[0])(*(_QWORD *)(a1 + 8));
if( (int)result >= 0 )
{
if( *(_QWORD *)(a1 + 32) )
result = off_140C009C0[0]();
if( (int)result >= 0 )
*(_BYTE *)(a1 + 16) &= ~2u;
}
*(_QWORD *)(a1 + 8) = 0i64;
*(_QWORD *)(a1 + 32) = 0i64;
return result;
}