From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiri Pirko Subject: [PATCH] atkbd: cancel delayed work before freeing its structure Date: Wed, 5 Nov 2008 15:31:40 +0100 Message-ID: <20081105153140.25132ca1@psychotron.englab.brq.redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from mx2.redhat.com ([66.187.237.31]:44036 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751550AbYKEObi (ORCPT ); Wed, 5 Nov 2008 09:31:38 -0500 Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: linux-kernel@vger.kernel.org Cc: linux-input@vger.kernel.org, dmitry.torokhov@gmail.com, oleg@redhat.com Pointed out by Oleg Nesterov. Since delayed work is used here, use of flush_scheduled_work() is not sufficient in atkbd_disconnect(). It does not wait for scheduled delayed work to finish. This patch prevents delayed work to be processed after freeing atkbd structure (used struct delayed_work is part of atkbd) by cancelling this delayed work. Jirka Signed-off-by: Jiri Pirko --- drivers/input/keyboard/atkbd.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c index 22016ca..f3bbf49 100644 --- a/drivers/input/keyboard/atkbd.c +++ b/drivers/input/keyboard/atkbd.c @@ -824,7 +824,7 @@ static void atkbd_disconnect(struct serio *serio) atkbd_disable(atkbd); /* make sure we don't have a command in flight */ - flush_scheduled_work(); + cancel_delayed_work_sync(&atkbd->event_work); sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group); input_unregister_device(atkbd->dev); -- 1.5.6.5