//_____________________________________________________________________________
Bool_t
-AliMUONClusterFinderPeakCOG::Prepare(Int_t detElemId, TClonesArray* pads[2],
+AliMUONClusterFinderPeakCOG::Prepare(Int_t detElemId, TObjArray* pads[2],
const AliMpArea& area,
const AliMpVSegmentation* seg[2])
{
Double_t xylim[4] = {999, 999, 999, 999};
Int_t nPix = pixArray->GetEntriesFast();
+
+ if ( nPix <= 0 ) return 0;
+
AliMUONPad *pixPtr = 0;
for (Int_t ipix = 0; ipix < nPix; ++ipix) {
pixPtr = (AliMUONPad*) pixArray->UncheckedAt(ipix);