求教，输出inode号的时候总是崩溃，只输出dentry的name没有问题，但是加上inode号就崩溃

Question

path = "/home";
fp = filp_open(path,O_DIRECTORY,0);
dentry = fp->f_path.dentry;
inode  = dentry->d_inode;
printk("now open--name:%-20sino:%10ld\n",dentry->d_name.name,inode->i_ino);
parent = dentry->d_parent;
printk("his brother:\n");
list_for_each_entry(p,&parent->d_subdirs,d_child){
    printk("name:%-30sino:%10ld\n",p->d_name.name,p->d_inode->i_ino);
}

求高手指教，困扰许久了
打开日志信息如图片所示：