From df383cdf95d3312dec52b51f71988cbe06adb0eb Mon Sep 17 00:00:00 2001
From: Michael Kerrisk <mtk.manpages@gmail.com>
Date: Fri, 30 Mar 2012 11:27:49 +1300
Subject: [PATCH] posix_memalign.3: Note posix_memalign()'s treatment of
 'memptr' on error

Reported-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
---
 man3/posix_memalign.3 | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/man3/posix_memalign.3 b/man3/posix_memalign.3
index dfbefa7ea..41fb2c499 100644
--- a/man3/posix_memalign.3
+++ b/man3/posix_memalign.3
@@ -151,9 +151,15 @@ returns zero on success, or one of the error values listed in the
 next section on failure.
 The value of
 .I errno
-is indeterminate after a call to
-.BR posix_memalign ().
-.SH ERRORS
+is not set.
+On Linux (and other systems),
+.BR posix_memalign ()
+does not modify
+.I memptr
+on failure.
+A requirement standardizing this behavior was added in POSIX.1-2016.
+.\" http://austingroupbugs.net/view.php?id=520
+.SH "ERRORS"
 .TP
 .B EINVAL
 The