From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964821Ab3BTUPd (ORCPT ); Wed, 20 Feb 2013 15:15:33 -0500 Received: from mailout02.c08.mtsvc.net ([205.186.168.190]:54724 "EHLO mailout02.c08.mtsvc.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935858Ab3BTUPZ (ORCPT ); Wed, 20 Feb 2013 15:15:25 -0500 From: Peter Hurley To: Greg Kroah-Hartman , Jiri Slaby Cc: Sasha Levin , Sebastian Andrzej Siewior , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, Ilya Zykov , Dave Jones , Michael Ellerman , Shawn Guo , Peter Hurley Subject: [PATCH v4 17/32] tty: Bracket ldisc release with TTY_DEBUG_HANGUP messages Date: Wed, 20 Feb 2013 15:03:04 -0500 Message-Id: <1361390599-15195-18-git-send-email-peter@hurleysoftware.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1361390599-15195-1-git-send-email-peter@hurleysoftware.com> References: <1361390599-15195-1-git-send-email-peter@hurleysoftware.com> In-Reply-To: <1360095638-6624-1-git-send-email-peter@hurleysoftware.com> References: <1360095638-6624-1-git-send-email-peter@hurleysoftware.com> X-Authenticated-User: 125194 peter@hurleysoftware.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Expected typical log output: [ 2.437211] tty_open: opening pts1... [ 2.443376] tty_open: opening pts5... [ 2.447830] tty_release: ptm0 (tty count=1)... [ 2.447849] pts0 vhangup... [ 2.447865] tty_release: ptm0: final close [ 2.447876] tty_release: ptm0: freeing structure... [ 2.451634] tty_release: tty1 (tty count=1)... [ 2.451638] tty_release: tty1: final close [ 2.451654] tty_release: tty1: freeing structure... [ 2.452505] tty_release: pts5 (tty count=2)... [ 2.453029] tty_open: opening pts0... Signed-off-by: Peter Hurley --- drivers/tty/tty_io.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index f1303da..cfcd849 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -1790,7 +1790,7 @@ int tty_release(struct inode *inode, struct file *filp) return 0; #ifdef TTY_DEBUG_HANGUP - printk(KERN_DEBUG "%s: freeing tty structure...\n", __func__); + printk(KERN_DEBUG "%s: %s: final close\n", __func__, tty_name(tty, buf)); #endif /* * Ask the line discipline code to release its structures @@ -1802,6 +1802,9 @@ int tty_release(struct inode *inode, struct file *filp) if (o_tty) tty_flush_works(o_tty); +#ifdef TTY_DEBUG_HANGUP + printk(KERN_DEBUG "%s: %s: freeing structure...\n", __func__, tty_name(tty, buf)); +#endif /* * The release_tty function takes care of the details of clearing * the slots and preserving the termios structure. The tty_unlock_pair -- 1.8.1.2