diff --git a/include/linux/cleancache.h b/include/linux/cleancache.h
index 29657d1..b23611f 100644
--- a/include/linux/cleancache.h
+++ b/include/linux/cleancache.h
@@ -33,8 +33,7 @@
 	void (*invalidate_fs)(int);
 };
 
-extern struct cleancache_ops *
-	cleancache_register_ops(struct cleancache_ops *ops);
+extern int cleancache_register_ops(struct cleancache_ops *ops);
 extern void __cleancache_init_fs(struct super_block *);
 extern void __cleancache_init_shared_fs(struct super_block *);
 extern int  __cleancache_get_page(struct page *);