{
CurrentOffset += DataRunLength * Vcb->NtfsInfo.BytesPerCluster;
DataRun = DecodeRun(DataRun, &DataRunOffset, &DataRunLength);
- if (DataRunLength != (ULONGLONG)-1)
+ if (DataRunOffset != (ULONGLONG)-1)
{
DataRunStartLCN = LastLCN + DataRunOffset;
LastLCN = DataRunStartLCN;