diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index 17d97ffbbdebb40a06fc800627a53824c03c156e..e147b9595ee826a3a61998615eaf71daf469aacd 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -195,7 +195,7 @@ bool quarantine_put(struct kmem_cache *cache, void *object);
 void quarantine_reduce(void);
 void quarantine_remove_cache(struct kmem_cache *cache);
 #else
-static inline void quarantine_put(struct kmem_cache *cache, void *object) { return false; }
+static inline bool quarantine_put(struct kmem_cache *cache, void *object) { return false; }
 static inline void quarantine_reduce(void) { }
 static inline void quarantine_remove_cache(struct kmem_cache *cache) { }
 #endif