unsigned long arch_randomize_brk(struct mm_struct *mm)
{
- unsigned long ret = PAGE_ALIGN(mm->brk + brk_rnd());
+ unsigned long ret;
- if (ret < mm->brk)
- return mm->brk;
- return ret;
+ ret = PAGE_ALIGN(mm->brk + brk_rnd());
+ return (ret > mm->brk) ? ret : mm->brk;
}
unsigned long randomize_et_dyn(unsigned long base)
{
- unsigned long ret = PAGE_ALIGN(base + brk_rnd());
+ unsigned long ret;
if (!(current->flags & PF_RANDOMIZE))
return base;
- if (ret < base)
- return base;
- return ret;
+ ret = PAGE_ALIGN(base + brk_rnd());
+ return (ret > base) ? ret : base;
}