ptail
void ptail(void);
ptail();
ptail();
struct pm_comp_pkg *p, *ptail;
phead = ptail = p;
ptail->next = p;
ptail = p;
ptail = p;
kmem_free(ptail->comp, sizeof (*ptail->comp));
kmem_free(ptail, sizeof (*ptail));
ptail = p;
p = ptail->next;
kmem_free(ptail, sizeof (*ptail));