From 0100a2b36e5f901f8befa792619285ddbf98ef51 Mon Sep 17 00:00:00 2001
From: Günther Noack <gnoack3000@gmail.com>
Date: Thu, 20 Apr 2023 22:08:41 +0200
Subject: syscall.2: Document ENOSYS error
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Link: <https://lore.kernel.org/linux-man/31ecebc5-1b97-b610-a097-f260ec4d4c8d@gmail.com/>
Suggested-by: Alejandro Colomar <alx@kernel.org>
Signed-off-by: Günther Noack <gnoack3000@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
---
 man2/syscall.2 | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/man2/syscall.2 b/man2/syscall.2
index 55233ac51..0ba537f4f 100644
--- a/man2/syscall.2
+++ b/man2/syscall.2
@@ -64,6 +64,12 @@ In general, a 0 return value indicates success.
 A \-1 return value indicates an error,
 and an error number is stored in
 .IR errno .
+.SH ERRORS
+.TP
+.B ENOSYS
+The requested system call number is not implemented.
+.PP
+Other errors are specific to the invoked system call.
 .SH NOTES
 .BR syscall ()
 first appeared in
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