Hardening of linked-list routines - all routines now check for a NULL list passed in as a parameter - results of internal functions checked for NULL result
Hardening of linked-list routines
- all routines now check for a NULL list passed in as a parameter
- results of internal functions checked for NULL result

MarcNo/lifelines,MarcNo/lifelines,disassembler/Lifelines,MarcNo/lifelines,disassembler/Lifelines,disassembler/Lifelines,MarcNo/lifelines,disassembler/Lifelines