fix issue found by clang static analyzer
fix issue found by clang static analyzer

xcllnt/libxo,gahr/libxo,xcllnt/libxo,Juniper/libxo,Juniper/libxo,gahr/libxo,Juniper/libxo,Juniper/libxo,xcllnt/libxo,gahr/libxo,gahr/libxo,xcllnt/libxo