From 40c75945ad594507035c6ab0b6879a7368ff6b38 Mon Sep 17 00:00:00 2001
From: Michael Kerrisk <mtk.manpages@gmail.com>
Date: Tue, 4 Nov 2008 10:56:17 -0500
Subject: [PATCH] epoll.7: Add error handling for epoll_wait() call in example
 code

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
---
 man7/epoll.7 | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/man7/epoll.7 b/man7/epoll.7
index 990fe85c7..e6b163e53 100644
--- a/man7/epoll.7
+++ b/man7/epoll.7
@@ -18,7 +18,7 @@
 .\"
 .\"  Davide Libenzi <davidel@xmailserver.org>
 .\"
-.TH EPOLL 7 2008-11-01 "Linux" "Linux Programmer's Manual"
+.TH EPOLL 7 2008-11-04 "Linux" "Linux Programmer's Manual"
 .SH NAME
 epoll \- I/O event notification facility
 .SH SYNOPSIS
@@ -220,6 +220,10 @@ if (epoll_ctl(epollfd, EPOLL_CTL_ADD, listen_sock, &ev) == \-1) {
 
 for (;;) {
     nfds = epoll_wait(epollfd, events, MAX_EVENTS, \-1);
+    if (nfds == \-1) {
+        perror("epoll_pwait");
+        exit(EXIT_FAILURE);
+    }
 
     for (n = 0; n < nfds; ++n) {
         if (events[n].data.fd == listen_sock) {