From patchwork Mon Nov 30 12:53:07 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Kleine-Budde X-Patchwork-Id: 1408211 Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4Cl4vM2Mzjz9sTc for ; Mon, 30 Nov 2020 23:54:55 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726408AbgK3Myn (ORCPT ); Mon, 30 Nov 2020 07:54:43 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60798 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726325AbgK3Myf (ORCPT ); Mon, 30 Nov 2020 07:54:35 -0500 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1117BC061A49 for ; Mon, 30 Nov 2020 04:53:17 -0800 (PST) Received: from gallifrey.ext.pengutronix.de ([2001:67c:670:201:5054:ff:fe8d:eefb] helo=bjornoya.blackshift.org) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kjig7-00043O-L5 for netdev@vger.kernel.org; Mon, 30 Nov 2020 13:53:15 +0100 Received: from dspam.blackshift.org (localhost [127.0.0.1]) by bjornoya.blackshift.org (Postfix) with SMTP id E98B359F911 for ; Mon, 30 Nov 2020 12:53:12 +0000 (UTC) Received: from hardanger.blackshift.org (unknown [172.20.34.65]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by bjornoya.blackshift.org (Postfix) with ESMTPS id DDFF259F8EF; Mon, 30 Nov 2020 12:53:09 +0000 (UTC) Received: from blackshift.org (localhost [::1]) by hardanger.blackshift.org (OpenSMTPD) with ESMTP id 9083fcc3; Mon, 30 Nov 2020 12:53:08 +0000 (UTC) From: Marc Kleine-Budde To: netdev@vger.kernel.org Cc: davem@davemloft.net, kuba@kernel.org, linux-can@vger.kernel.org, kernel@pengutronix.de, Zhang Qilong , Marc Kleine-Budde Subject: [net 5/5] can: kvaser_pciefd: kvaser_pciefd_open(): fix error handling Date: Mon, 30 Nov 2020 13:53:07 +0100 Message-Id: <20201130125307.218258-6-mkl@pengutronix.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201130125307.218258-1-mkl@pengutronix.de> References: <20201130125307.218258-1-mkl@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:201:5054:ff:fe8d:eefb X-SA-Exim-Mail-From: mkl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: netdev@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Zhang Qilong If kvaser_pciefd_bus_on() failed, we should call close_candev() to avoid reference leak. Fixes: 26ad340e582d3 ("can: kvaser_pciefd: Add driver for Kvaser PCIEcan devices") Signed-off-by: Zhang Qilong Link: https://lore.kernel.org/r/20201128133922.3276973-3-zhangqilong3@huawei.com Signed-off-by: Marc Kleine-Budde --- drivers/net/can/kvaser_pciefd.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c index 72acd1ba162d..43151dd6cb1c 100644 --- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -692,8 +692,10 @@ static int kvaser_pciefd_open(struct net_device *netdev) return err; err = kvaser_pciefd_bus_on(can); - if (err) + if (err) { + close_candev(netdev); return err; + } return 0; }