kfree(sd->s_iattr);
static inline void release_sysfs_dirent(struct sysfs_dirent * sd){	if (sd->s_type & SYSFS_KOBJ_LINK) {		struct sysfs_symlink * sl = sd->s_element;		kfree(sl->link_name);		kobject_put(sl->target_kobj);		kfree(sl);	}	kmem_cache_free(sysfs_dir_cachep, sd);}