From 9729c193cb58ddded9c5d2092dd73de124344320 Mon Sep 17 00:00:00 2001
From: zijunzhao <zijunzhao@google.com>
Date: Tue, 7 Feb 2023 20:47:11 +0000
Subject: [PATCH] Nullability check for eventfd module

Bugs: b/245972273
Test: None
Change-Id: I5a74318850f3e49dd9d78180476e2a9d76853606
---
 libc/include/sys/eventfd.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libc/include/sys/eventfd.h b/libc/include/sys/eventfd.h
index 1b6ad29ff..1ad11e3ff 100644
--- a/libc/include/sys/eventfd.h
+++ b/libc/include/sys/eventfd.h
@@ -62,7 +62,7 @@ typedef uint64_t eventfd_t;
  *
  * Returns 0 on success, or returns -1 otherwise.
  */
-int eventfd_read(int __fd, eventfd_t* __value);
+int eventfd_read(int __fd, eventfd_t* _Nonnull __value);
 
 /**
  * [eventfd_write(3)](http://man7.org/linux/man-pages/man2/eventfd.2.html) is a convenience