From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 83152C432C0 for ; Fri, 22 Nov 2019 10:32:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4BC2D20714 for ; Fri, 22 Nov 2019 10:32:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574418724; bh=n0hSoyCt+a7Qwm0d+IWQ9s8PCzkBt2QJMIFcCIC1V2o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=C4JvRw7sibipk7C3qgmT2OKcEbwJ08nnFClpwu13CCuSUxgdPHHH2rORGq2KKwbok UEkpv74THMTCPgG/jmvsj8zT/AuZ1aqKE/aDaiWENTnubTzrg61hu9Ecye3V9mDJq8 YSv2hhQ2Yt1v2c6xXYiMurl3eQS2BWPw+XuM+ppk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727549AbfKVKcC (ORCPT ); Fri, 22 Nov 2019 05:32:02 -0500 Received: from mail.kernel.org ([198.145.29.99]:52818 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726563AbfKVKcA (ORCPT ); Fri, 22 Nov 2019 05:32:00 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0484820715; Fri, 22 Nov 2019 10:31:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574418719; bh=n0hSoyCt+a7Qwm0d+IWQ9s8PCzkBt2QJMIFcCIC1V2o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EondXoHLyf943iKGsndX4/pwBN7fDTg2Bj3qPts08NxB2LoF8keLF7PztO/SPH6YS iaOJ6ognajkG9AA5VyPJlwYP6RN6lgoWFmjSG3jyLcBowbbasMrExXXacpLStlnjsP 2eXAmaIipM1UzaAQ7rFd1Z4WmTBFGZsVGkt/qkNM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Oliver Neukum , Dmitry Torokhov , syzbot+b6c55daa701fc389e286@syzkaller.appspotmail.com Subject: [PATCH 4.4 005/159] Input: ff-memless - kill timer in destroy() Date: Fri, 22 Nov 2019 11:26:36 +0100 Message-Id: <20191122100709.380164428@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191122100704.194776704@linuxfoundation.org> References: <20191122100704.194776704@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Oliver Neukum commit fa3a5a1880c91bb92594ad42dfe9eedad7996b86 upstream. No timer must be left running when the device goes away. Signed-off-by: Oliver Neukum Reported-and-tested-by: syzbot+b6c55daa701fc389e286@syzkaller.appspotmail.com Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/1573726121.17351.3.camel@suse.com Signed-off-by: Dmitry Torokhov Signed-off-by: Greg Kroah-Hartman --- drivers/input/ff-memless.c | 9 +++++++++ 1 file changed, 9 insertions(+) --- a/drivers/input/ff-memless.c +++ b/drivers/input/ff-memless.c @@ -501,6 +501,15 @@ static void ml_ff_destroy(struct ff_devi { struct ml_device *ml = ff->private; + /* + * Even though we stop all playing effects when tearing down + * an input device (via input_device_flush() that calls into + * input_ff_flush() that stops and erases all effects), we + * do not actually stop the timer, and therefore we should + * do it here. + */ + del_timer_sync(&ml->timer); + kfree(ml->private); }