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=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,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 CDF80C4332D for ; Tue, 2 Feb 2021 14:12:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AEC8E64EAC for ; Tue, 2 Feb 2021 14:12:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234155AbhBBOMi (ORCPT ); Tue, 2 Feb 2021 09:12:38 -0500 Received: from mail.kernel.org ([198.145.29.99]:47086 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233569AbhBBOHT (ORCPT ); Tue, 2 Feb 2021 09:07:19 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 4CDE765021; Tue, 2 Feb 2021 13:49:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1612273784; bh=4Cqo2lL21YMDhklvmCd7KgP83yK7GZh0xMfbHbGn/KU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=xSdfgSy52NN3OImsVimpf0FUqaZatKpvZgABh/bzuXbqh8n5IXC3iDQ4R2z4XY+Tt 5aHCt0/LV89dgSPBrdk5ruaXs/8L2BaMvW/1GpgGY/Ngysst9Ue5S89BHLYlDxC5UE XQLjPogTevd9yVdlPx0VmXI1nuWuLz4uPcHdEfAo= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Pan Bian , Jakub Kicinski Subject: [PATCH 4.4 28/28] NFC: fix possible resource leak Date: Tue, 2 Feb 2021 14:38:48 +0100 Message-Id: <20210202132942.311729993@linuxfoundation.org> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210202132941.180062901@linuxfoundation.org> References: <20210202132941.180062901@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Pan Bian commit d8f923c3ab96dbbb4e3c22d1afc1dc1d3b195cd8 upstream. Put the device to avoid resource leak on path that the polling flag is invalid. Fixes: a831b9132065 ("NFC: Do not return EBUSY when stopping a poll that's already stopped") Signed-off-by: Pan Bian Link: https://lore.kernel.org/r/20210121153745.122184-1-bianpan2016@163.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- net/nfc/netlink.c | 1 + 1 file changed, 1 insertion(+) --- a/net/nfc/netlink.c +++ b/net/nfc/netlink.c @@ -850,6 +850,7 @@ static int nfc_genl_stop_poll(struct sk_ if (!dev->polling) { device_unlock(&dev->dev); + nfc_put_device(dev); return -EINVAL; }