From 1e55eb3800a60c1a1118b84f2534b78481702f38 Mon Sep 17 00:00:00 2001
From: Andrei Vagin <avagin@google.com>
Date: Wed, 13 Nov 2019 15:34:47 -0800
Subject: [PATCH] test/syscalls/proc: check an return code of waitid

PiperOrigin-RevId: 280295208
---
 test/syscalls/linux/proc.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/test/syscalls/linux/proc.cc b/test/syscalls/linux/proc.cc
index e4c030bbb..512de5ee0 100644
--- a/test/syscalls/linux/proc.cc
+++ b/test/syscalls/linux/proc.cc
@@ -183,7 +183,8 @@ PosixError WithSubprocess(SubprocessCallback const& running,
   siginfo_t info;
   // Wait until the child process has exited (WEXITED flag) but don't
   // reap the child (WNOWAIT flag).
-  waitid(P_PID, child_pid, &info, WNOWAIT | WEXITED);
+  EXPECT_THAT(waitid(P_PID, child_pid, &info, WNOWAIT | WEXITED),
+              SyscallSucceeds());
 
   if (zombied) {
     // Arg of "Z" refers to a Zombied Process.