From 90e072b6333f9a1a2a16d1c5b061a5828813f977 Mon Sep 17 00:00:00 2001
From: Wang Long <long.wanglong@huawei.com>
Date: Tue, 22 Nov 2016 16:39:17 +0800
Subject: [PATCH] reboot.2: Note errors for invalid commands inside a PID
 namespace

Signed-off-by: Wang Long <long.wanglong@huawei.com>
---
 man2/reboot.2 | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/man2/reboot.2 b/man2/reboot.2
index db0806c07..2dfaeb73f 100644
--- a/man2/reboot.2
+++ b/man2/reboot.2
@@ -185,6 +185,12 @@ and
 cause a
 .B SIGINT
 signal to be sent.
+For the other
+.I cmd
+values, \-1 is returned and
+.I errno
+is set to
+.BR EINVAL .
 .SH RETURN VALUE
 For the values of
 .I cmd