From eeec32a731631a9bad9abb21c626b9f2840bee0d Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Mon, 4 Jan 2010 16:26:50 +0000 Subject: [PATCH] nozomi: quick fix for the close/close bug Nozomi goes wrong if you get the sequence open open close [stuff] close which turns out to occur on some ppp type setups. This is a quick patch up for the problem. It's not really fixing Nozomi which completely fails to implement tty open/close semantics and all the other needed stuff. Doing it right is a rather more invasive patch set and not one that will backport. Signed-off-by: Alan Cox Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/char/nozomi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/char/nozomi.c b/drivers/char/nozomi.c index 7d73cd430340..2ad7d37afbd0 100644 --- a/drivers/char/nozomi.c +++ b/drivers/char/nozomi.c @@ -1651,10 +1651,10 @@ static void ntty_close(struct tty_struct *tty, struct file *file) dc->open_ttys--; port->count--; - tty_port_tty_set(port, NULL); if (port->count == 0) { DBG1("close: %d", nport->token_dl); + tty_port_tty_set(port, NULL); spin_lock_irqsave(&dc->spin_mutex, flags); dc->last_ier &= ~(nport->token_dl); writew(dc->last_ier, dc->reg_ier); -- 2.39.5