From b4741b160b9bfd682871f4342b4b3ad9e35a7046 Mon Sep 17 00:00:00 2001
From: deraadt <deraadt@openbsd.org>
Date: Sat, 15 May 2021 13:56:56 +0000
Subject: [PATCH] improve comment regarding child_return() clearing
 errno-indicating flag

---
 sys/arch/riscv64/riscv64/syscall.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/sys/arch/riscv64/riscv64/syscall.c b/sys/arch/riscv64/riscv64/syscall.c
index 61d1e2d9d63..584726da5b9 100644
--- a/sys/arch/riscv64/riscv64/syscall.c
+++ b/sys/arch/riscv64/riscv64/syscall.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: syscall.c,v 1.6 2021/05/14 06:48:52 jsg Exp $	*/
+/*	$OpenBSD: syscall.c,v 1.7 2021/05/15 13:56:56 deraadt Exp $	*/
 
 /*
  * Copyright (c) 2020 Brian Bamsch <bbamsch@google.com>
@@ -125,8 +125,7 @@ child_return(arg)
 
 	frame->tf_a[0] = 0;
 	frame->tf_a[1] = 1;
-	// XXX How to signal error?
-	frame->tf_t[0] = 0;
+	frame->tf_t[0] = 0;			/* no error */
 
 	KERNEL_UNLOCK();
 
-- 
2.20.1