Stuck in an endless loop in method for a linked list class

I seem to be stuck in an endless loop here and was wondering if someone could help? I am writing this method to a linked list class. There are strings of words in a file that is read into the linked list. It needs to read the last string in the file (eg: happy) then run back through the linked list, and anything less than happy (any word starting with a-g) it will delete from the list and create a new list with the deleted nodes. I have a deleteNode method written also. Any help is appreciated!

Code:

void list::outputResult(ostream& outstream)
{

  node *nodeptr;
  string data;
  
  nodeptr = head;
  while(nodeptr->link != NULL)
  {
  nodeptr = nodeptr->link;
  }
  
  nodeptr->data;
  string temps = nodeptr->data;

  nodeptr = head;
  while(nodeptr->link != NULL)
  {
  
  if(nodeptr->data < temps)
  {
  deleteNode(data);
  nodeptr = head;
  }
  else
  nodeptr = nodeptr->link;
  }
}