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 2A612C32753 for ; Wed, 14 Aug 2019 17:28:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F36A0206C2 for ; Wed, 14 Aug 2019 17:28:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1565803682; bh=4WrNfSb7Mq6GDbDvVxcMPzFiAYnHmtNRWvUWsMX+hRs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=E7kRTOVrd/l8m+G8Q0WsrySHiyKgXUKhI/YLMoUYvttS+De6mP3AVypffiF+TCduX awszSjxTpK8m5Y2SgY4DZp0B8BTV0VtZyeI2YI2TlsBC/+TkXUpJvDo39jEmI243Xt 4bVsW0t7TX2AP7hdhVyfxF29IJONcu/zLQ+u/EXU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728762AbfHNRDA (ORCPT ); Wed, 14 Aug 2019 13:03:00 -0400 Received: from mail.kernel.org ([198.145.29.99]:51510 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728793AbfHNRC7 (ORCPT ); Wed, 14 Aug 2019 13:02:59 -0400 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 2CEEE208C2; Wed, 14 Aug 2019 17:02:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1565802178; bh=4WrNfSb7Mq6GDbDvVxcMPzFiAYnHmtNRWvUWsMX+hRs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=t3SISx1WOBJNb/P17m9VUHbFHTbKWhTAz9+dT+GdSQvha2DkjGLNACydaYJea01zB S358w4qy3wg5BP2GMIYCKxNx3/nlSQErnKK9p+LAtq5TqkPVcO+iE9YJ+h79OFYEOn ZWNsSyQvpyV5JwEgYDd6QLFUEc42xuAYf0wtw0tA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, syzbot+199ea16c7f26418b4365@syzkaller.appspotmail.com, Oliver Neukum , Dmitry Torokhov Subject: [PATCH 5.2 024/144] Input: usbtouchscreen - initialize PM mutex before using it Date: Wed, 14 Aug 2019 18:59:40 +0200 Message-Id: <20190814165800.859770402@linuxfoundation.org> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190814165759.466811854@linuxfoundation.org> References: <20190814165759.466811854@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Oliver Neukum commit b55d996f057bf2e7ba9422a80b5e17e99860cb0b upstream. Mutexes shall be initialized before they are used. Fixes: 12e510dbc57b2 ("Input: usbtouchscreen - fix deadlock in autosuspend") Reported-by: syzbot+199ea16c7f26418b4365@syzkaller.appspotmail.com Signed-off-by: Oliver Neukum Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov Signed-off-by: Greg Kroah-Hartman --- drivers/input/touchscreen/usbtouchscreen.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/input/touchscreen/usbtouchscreen.c +++ b/drivers/input/touchscreen/usbtouchscreen.c @@ -1659,6 +1659,8 @@ static int usbtouch_probe(struct usb_int if (!usbtouch || !input_dev) goto out_free; + mutex_init(&usbtouch->pm_mutex); + type = &usbtouch_dev_info[id->driver_info]; usbtouch->type = type; if (!type->process_pkt)