I missed the condition in sentence 'while', that is 'Tail != NULL'. But I can not understand why I must add this condition sentence...

SLL_RemoveNode_MY_ERROR.c

void SLL_RemoveNode(Node** Head, Node* Remove)
{
  if((*Head)==NULL)
    *Head = Remove->NextNode;
  else
  {
    Node* Tail = *Head
    while(Tail->NextNode != Remove)
    {
      Tail = Tail->NextNode;
    }
    Tail->NextNode = Remove->NextNode;
  }
}

void SLL_RemoveNode(Node** Head, Node* Remove)
{
  if((*Head)==NULL)
    *Head = Remove->NextNode;
  else
  {
    Node* Tail = *Head
    while(Tail->NextNode != NULL && Tail->NextNode != Remove)
    {
      Tail = Tail->NextNode;
    }
    if(Tail->NextNode != NULL)
      Tail->NextNode = Remove->NextNode;
  }
}