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-rw-r--r--lib/libc/sys/poll.28
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/libc/sys/poll.2 b/lib/libc/sys/poll.2
index 2ea7680136e..93c2b5aea65 100644
--- a/lib/libc/sys/poll.2
+++ b/lib/libc/sys/poll.2
@@ -1,4 +1,4 @@
-.\" $NetBSD: poll.2,v 1.37 2021/02/09 09:01:29 wiz Exp $
+.\" $NetBSD: poll.2,v 1.38 2023/07/07 01:31:25 riastradh Exp $
.\"
.\" Copyright (c) 1998, 2005, 2020 The NetBSD Foundation, Inc.
.\" All rights reserved.
@@ -210,8 +210,10 @@ Sockets produce POLLIN rather than POLLHUP when the remote
end is closed.
.Sh RETURN VALUES
.Fn poll
-returns the number of descriptors that are ready for I/O, or \-1 if an
-error occurred.
+returns the number of descriptors that are ready for I/O, or returns
+\-1 and sets
+.Dv errno
+if an error occurred.
If the time limit expires,
.Fn poll
returns 0.