diff --git a/include/linux/mm.h b/include/linux/mm.h
index 1d6ec55d8b25..f1cd22f2df1a 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1100,7 +1100,7 @@ static inline bool shmem_mapping(struct address_space *mapping)
 }
 #endif
 
-extern int can_do_mlock(void);
+extern bool can_do_mlock(void);
 extern int user_shm_lock(size_t, struct user_struct *);
 extern void user_shm_unlock(size_t, struct user_struct *);
 
diff --git a/mm/mlock.c b/mm/mlock.c
index 9197b6721a1e..e1e2b1207bf2 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -24,13 +24,13 @@
 
 #include "internal.h"
 
-int can_do_mlock(void)
+bool can_do_mlock(void)
 {
 	if (rlimit(RLIMIT_MEMLOCK) != 0)
-		return 1;
+		return true;
 	if (capable(CAP_IPC_LOCK))
-		return 1;
-	return 0;
+		return true;
+	return false;
 }
 EXPORT_SYMBOL(can_do_mlock);