Protect vs nROFs not being multiple of 12

Author: mconcas

Detectors/ITSMFT/ITS/tracking/src/TrackerTraits.cxx

@@ -71,7 +71,7 @@ void TrackerTraits::computeLayerTracklets(const int iteration, int iROFslice, in
   const Vertex diamondVert({mTrkParams[iteration].Diamond[0], mTrkParams[iteration].Diamond[1], mTrkParams[iteration].Diamond[2]}, {25.e-6f, 0.f, 0.f, 25.e-6f, 0.f, 36.f}, 1, 1.f);
   gsl::span<const Vertex> diamondSpan(&diamondVert, 1);
   int startROF{mTrkParams[iteration].nROFsPerIterations > 0 ? iROFslice * mTrkParams[iteration].nROFsPerIterations : 0};
-  int endROF{mTrkParams[iteration].nROFsPerIterations > 0 ? (iROFslice + 1) * mTrkParams[iteration].nROFsPerIterations + mTrkParams[iteration].DeltaROF : tf->getNrof()};
+  int endROF{gpu::GPUCommonMath::Min(mTrkParams[iteration].nROFsPerIterations > 0 ? (iROFslice + 1) * mTrkParams[iteration].nROFsPerIterations + mTrkParams[iteration].DeltaROF : tf->getNrof(), tf->getNrof())};
   for (int rof0{startROF}; rof0 < endROF; ++rof0) {
     gsl::span<const Vertex> primaryVertices = mTrkParams[iteration].UseDiamond ? diamondSpan : tf->getPrimaryVertices(rof0);
     const int startVtx{iVertex >= 0 ? iVertex : 0};