extern int sysfs_create_subdir(struct kobject *, const char *, struct dentry **);
extern void sysfs_remove_subdir(struct dentry *);
-extern int sysfs_readlink(struct dentry *, char __user *, int );
extern int sysfs_follow_link(struct dentry *, struct nameidata *);
+extern void sysfs_put_link(struct dentry *, struct nameidata *);
extern struct rw_semaphore sysfs_rename_sem;
static inline struct kobject *sysfs_get_kobject(struct dentry *dentry)