diff --git a/kernel/sys.c b/kernel/sys.c
index 1280575..fd46865 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -2007,7 +2007,7 @@ static int prctl_set_mm_map(int opt, const void __user *addr, unsigned long data
 	}
 
 	/*
-	 * arg_lock protects concurent updates but we still need mmap_sem for
+	 * arg_lock protects concurent updates but we still need mmap_lock for
 	 * read to exclude races with sys_brk.
 	 */
 	mmap_read_lock(mm);
@@ -2122,7 +2122,7 @@ static int prctl_set_mm(int opt, unsigned long addr,
 
 	/*
 	 * arg_lock protects concurent updates of arg boundaries, we need
-	 * mmap_sem for a) concurrent sys_brk, b) finding VMA for addr
+	 * mmap_lock for a) concurrent sys_brk, b) finding VMA for addr
 	 * validation.
 	 */
 	mmap_read_lock(mm);