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[src/trunk]: src/sys/compat/common Fix the OTIOCGETD emulation. Line discipli...
details: https://anonhg.NetBSD.org/src/rev/cde8ee1ad6fc
branches: trunk
changeset: 974685:cde8ee1ad6fc
user: christos <christos%NetBSD.org@localhost>
date: Sat Aug 08 19:04:58 2020 +0000
description:
Fix the OTIOCGETD emulation. Line discipline 0 is NTTYDISC.
diffstat:
sys/compat/common/tty_43.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diffs (29 lines):
diff -r e4e84814df64 -r cde8ee1ad6fc sys/compat/common/tty_43.c
--- a/sys/compat/common/tty_43.c Sat Aug 08 18:54:04 2020 +0000
+++ b/sys/compat/common/tty_43.c Sat Aug 08 19:04:58 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: tty_43.c,v 1.36 2020/05/23 23:42:41 ad Exp $ */
+/* $NetBSD: tty_43.c,v 1.37 2020/08/08 19:04:58 christos Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -62,7 +62,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: tty_43.c,v 1.36 2020/05/23 23:42:41 ad Exp $");
+__KERNEL_RCSID(0, "$NetBSD: tty_43.c,v 1.37 2020/08/08 19:04:58 christos Exp $");
#if defined(_KERNEL_OPT)
#include "opt_compat_netbsd.h"
@@ -250,8 +250,8 @@
case OTIOCGETD:
mutex_spin_enter(&tty_lock);
- *(int *)data = (tp->t_linesw == NULL) ?
- 2 /* XXX old NTTYDISC */ : tp->t_linesw->l_no;
+ *(int *)data = (tp->t_linesw == NULL || tp->t_linesw->l_no == 0)
+ ? 2 /* XXX old NTTYDISC */ : tp->t_linesw->l_no;
mutex_spin_exit(&tty_lock);
break;
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