Sync OpenBSD patchset 1057:

Check event_initialized before event_del if event may not have been set
up; libevent2 complains about this. Reported by Moriyoshi Koizumi.

1 files changed, 2 insertions, 1 deletions

diff --git a/tty.c b/tty.c
index 65bfe6c8..3f8b5d0a 100644
--- a/tty.c
+++ b/tty.c
@@ -279,7 +279,8 @@ tty_close(struct tty *tty)
 		tty->log_fd = -1;
 	}
 
-	evtimer_del(&tty->key_timer);
+	if (event_initialized(&tty->key_timer))
+		evtimer_del(&tty->key_timer);
 	tty_stop_tty(tty);
 
 	if (tty->flags & TTY_OPENED) {