From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Hurley Subject: [PATCH v2 02/11] tty: WARN if buffer work racing with tty free Date: Fri, 14 Dec 2012 13:22:41 -0500 Message-ID: <1355509370-5883-3-git-send-email-peter@hurleysoftware.com> References: <1355509370-5883-1-git-send-email-peter@hurleysoftware.com> Return-path: Received: from mailout39.mail01.mtsvc.net ([216.70.64.83]:58041 "EHLO n12.mail01.mtsvc.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756848Ab2LNSXS (ORCPT ); Fri, 14 Dec 2012 13:23:18 -0500 In-Reply-To: <1355509370-5883-1-git-send-email-peter@hurleysoftware.com> Sender: linux-serial-owner@vger.kernel.org List-Id: linux-serial@vger.kernel.org To: Alan Cox , Jiri Slaby Cc: linux-serial@vger.kernel.org, Greg Kroah-Hartman , Ilya Zykov , Sasha Levin , linux-kernel@vger.kernel.org, Peter Hurley Signed-off-by: Peter Hurley --- drivers/tty/tty_io.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 78c3000..3d2b6d7 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -1511,6 +1511,8 @@ static void queue_release_one_tty(struct kref *kref) { struct tty_struct *tty = container_of(kref, struct tty_struct, kref); + WARN_ON(work_pending(&tty->port->buf.work)); + /* The hangup queue is now free so we can reuse it rather than waste a chunk of memory for each port */ INIT_WORK(&tty->hangup_work, release_one_tty); -- 1.8.0.1