From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933310AbaCQNLK (ORCPT ); Mon, 17 Mar 2014 09:11:10 -0400 Received: from michel.telenet-ops.be ([195.130.137.88]:36443 "EHLO michel.telenet-ops.be" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933002AbaCQNLF (ORCPT ); Mon, 17 Mar 2014 09:11:05 -0400 From: Geert Uytterhoeven To: Greg Kroah-Hartman , Jiri Slaby , Peter Hurley Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, Geert Uytterhoeven Subject: [PATCH 1/2] serial_core: Get a reference for port->tty in uart_remove_one_port() Date: Mon, 17 Mar 2014 14:10:58 +0100 Message-Id: <1395061859-15295-1-git-send-email-geert@linux-m68k.org> X-Mailer: git-send-email 1.7.9.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Geert Uytterhoeven Suggested-by: Peter Hurley Signed-off-by: Geert Uytterhoeven --- drivers/tty/serial/serial_core.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index 8ee90f731f31..21084f0b8ea4 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -2647,6 +2647,7 @@ int uart_remove_one_port(struct uart_driver *drv, struct uart_port *uport) { struct uart_state *state = drv->state + uport->line; struct tty_port *port = &state->port; + struct tty_struct *tty; int ret = 0; BUG_ON(in_interrupt()); @@ -2675,8 +2676,11 @@ int uart_remove_one_port(struct uart_driver *drv, struct uart_port *uport) */ tty_unregister_device(drv->tty_driver, uport->line); - if (port->tty) + tty = tty_port_tty_get(port); + if (tty) { tty_vhangup(port->tty); + tty_kref_put(tty); + } /* * If the port is used as a console, unregister it, and power it down -- 1.7.9.5