[src/trunk]: src/sys/dev/usb Do a full screen update upon vt switch.

[nat <nat%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/a13ef23cd758
branches:  trunk
changeset: 369884:a13ef23cd758
user:      nat <nat%NetBSD.org@localhost>
date:      Tue Sep 06 02:28:35 2022 +0000

description:
Do a full screen update upon vt switch.

diffstat:

 sys/dev/usb/udl.c |  8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diffs (29 lines):

diff -r 542b37a0a3fe -r a13ef23cd758 sys/dev/usb/udl.c
--- a/sys/dev/usb/udl.c Tue Sep 06 02:26:11 2022 +0000
+++ b/sys/dev/usb/udl.c Tue Sep 06 02:28:35 2022 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: udl.c,v 1.31 2022/09/06 02:26:11 nat Exp $     */
+/*     $NetBSD: udl.c,v 1.32 2022/09/06 02:28:35 nat Exp $     */
 
 /*-
  * Copyright (c) 2009 FUKAUMI Naoki.
@@ -53,7 +53,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: udl.c,v 1.31 2022/09/06 02:26:11 nat Exp $");
+__KERNEL_RCSID(0, "$NetBSD: udl.c,v 1.32 2022/09/06 02:28:35 nat Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_usb.h"
@@ -1869,7 +1869,9 @@
 {
        mutex_enter(&sc->sc_thread_mtx);
        sc->sc_thread_stop = stop;
-       if (!stop)
+       if (!stop) {
+               sc->sc_clear = true;
                cv_broadcast(&sc->sc_thread_cv);
+       }
        mutex_exit(&sc->sc_thread_mtx);
 }