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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F28DDC28B2B for ; Fri, 19 Aug 2022 16:25:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352689AbiHSQZL (ORCPT ); Fri, 19 Aug 2022 12:25:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52136 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1352427AbiHSQUw (ORCPT ); Fri, 19 Aug 2022 12:20:52 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 71970106507; Fri, 19 Aug 2022 09:01:55 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id CD2F6B8280C; Fri, 19 Aug 2022 16:01:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 21D03C433C1; Fri, 19 Aug 2022 16:01:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660924912; bh=Ec5/oyhb00vaR4L1rErP9tSGFiWzLz6wckzSUZUh9pY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=toDuwk0t3y3OZ3j0I3eA+RXgIkdErzmYbQ9QQvtuOZgbL27N36DCeqhM6eUKvXyFi niB0obaYBKmXMsIZOeoKCAXjNzTCxhd7mpN8wAu3fq8AOUS3G1qLphukZbo4zUH0Gn sSI1AiOac4CdibpQSxZN+GFfY2JzjIwIU413CW4Y= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hulk Robot , Yang Yingliang , Max Filippov , Sasha Levin Subject: [PATCH 5.10 323/545] xtensa: iss: fix handling error cases in iss_net_configure() Date: Fri, 19 Aug 2022 17:41:33 +0200 Message-Id: <20220819153843.809226718@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220819153829.135562864@linuxfoundation.org> References: <20220819153829.135562864@linuxfoundation.org> User-Agent: quilt/0.67 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: Yang Yingliang [ Upstream commit 628ccfc8f5f79dd548319408fcc53949fe97b258 ] The 'pdev' and 'netdev' need to be released in error cases of iss_net_configure(). Change the return type of iss_net_configure() to void, because it's not used. Fixes: 7282bee78798 ("[PATCH] xtensa: Architecture support for Tensilica Xtensa Part 8") Reported-by: Hulk Robot Signed-off-by: Yang Yingliang Signed-off-by: Max Filippov Signed-off-by: Sasha Levin --- arch/xtensa/platforms/iss/network.c | 32 ++++++++++++++--------------- 1 file changed, 15 insertions(+), 17 deletions(-) diff --git a/arch/xtensa/platforms/iss/network.c b/arch/xtensa/platforms/iss/network.c index 4801df4e73e1..08d70c868c13 100644 --- a/arch/xtensa/platforms/iss/network.c +++ b/arch/xtensa/platforms/iss/network.c @@ -511,16 +511,15 @@ static void iss_net_pdev_release(struct device *dev) free_netdev(lp->dev); } -static int iss_net_configure(int index, char *init) +static void iss_net_configure(int index, char *init) { struct net_device *dev; struct iss_net_private *lp; - int err; dev = alloc_etherdev(sizeof(*lp)); if (dev == NULL) { pr_err("eth_configure: failed to allocate device\n"); - return 1; + return; } /* Initialize private element. */ @@ -549,7 +548,7 @@ static int iss_net_configure(int index, char *init) if (!tuntap_probe(lp, index, init)) { pr_err("%s: invalid arguments. Skipping device!\n", dev->name); - goto errout; + goto err_free_netdev; } pr_info("Netdevice %d (%pM)\n", index, dev->dev_addr); @@ -557,7 +556,8 @@ static int iss_net_configure(int index, char *init) /* sysfs register */ if (!driver_registered) { - platform_driver_register(&iss_net_driver); + if (platform_driver_register(&iss_net_driver)) + goto err_free_netdev; driver_registered = 1; } @@ -568,7 +568,8 @@ static int iss_net_configure(int index, char *init) lp->pdev.id = index; lp->pdev.name = DRIVER_NAME; lp->pdev.dev.release = iss_net_pdev_release; - platform_device_register(&lp->pdev); + if (platform_device_register(&lp->pdev)) + goto err_free_netdev; SET_NETDEV_DEV(dev, &lp->pdev.dev); dev->netdev_ops = &iss_netdev_ops; @@ -577,23 +578,20 @@ static int iss_net_configure(int index, char *init) dev->irq = -1; rtnl_lock(); - err = register_netdevice(dev); - rtnl_unlock(); - - if (err) { + if (register_netdevice(dev)) { + rtnl_unlock(); pr_err("%s: error registering net device!\n", dev->name); - /* XXX: should we call ->remove() here? */ - free_netdev(dev); - return 1; + platform_device_unregister(&lp->pdev); + return; } + rtnl_unlock(); timer_setup(&lp->tl, iss_net_user_timer_expire, 0); - return 0; + return; -errout: - /* FIXME: unregister; free, etc.. */ - return -EIO; +err_free_netdev: + free_netdev(dev); } /* ------------------------------------------------------------------------- */ -- 2.35.1