From patchwork Mon Dec 28 12:47:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 354771 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=-18.8 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, USER_AGENT_GIT autolearn=ham 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 0321DC4332B for ; Mon, 28 Dec 2020 14:49:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D440820867 for ; Mon, 28 Dec 2020 14:49:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390307AbgL1Otp (ORCPT ); Mon, 28 Dec 2020 09:49:45 -0500 Received: from mail.kernel.org ([198.145.29.99]:57246 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2437978AbgL1OVi (ORCPT ); Mon, 28 Dec 2020 09:21:38 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 4DD62208B6; Mon, 28 Dec 2020 14:20:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1609165257; bh=+uMgDeA9w8OnEA/mW5D3fzp7g8ppSCKBUrhmboa7jSE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VgRglz3URPCL0EZ/g0KnZHe/PcPSsCdtmTwYJCXuo6A/Q5z1nnJebJFxGXBdyUbDb 3M8Op2XEGmM6TkpPq+0UO0iLZSU7z+xgK87/1jqrIaBjExxsJxBKbaMJsFZ6mp4biF nCLrEeRx1s1FltuvLqUyvcJyflkt5s7ASZ15Zxdk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Christophe JAILLET , Jakub Kicinski , Sasha Levin Subject: [PATCH 5.10 468/717] net: allwinner: Fix some resources leak in the error handling path of the probe and in the remove function Date: Mon, 28 Dec 2020 13:47:46 +0100 Message-Id: <20201228125043.392973964@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201228125020.963311703@linuxfoundation.org> References: <20201228125020.963311703@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Christophe JAILLET [ Upstream commit 322e53d1e2529ae9d501f5e0f20604a79b873aef ] 'irq_of_parse_and_map()' should be balanced by a corresponding 'irq_dispose_mapping()' call. Otherwise, there is some resources leaks. Add such a call in the error handling path of the probe function and in the remove function. Fixes: 492205050d77 ("net: Add EMAC ethernet driver found on Allwinner A10 SoC's") Signed-off-by: Christophe JAILLET Link: https://lore.kernel.org/r/20201214202117.146293-1-christophe.jaillet@wanadoo.fr Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/ethernet/allwinner/sun4i-emac.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/allwinner/sun4i-emac.c b/drivers/net/ethernet/allwinner/sun4i-emac.c index 862ea44beea77..5ed80d9a6b9fe 100644 --- a/drivers/net/ethernet/allwinner/sun4i-emac.c +++ b/drivers/net/ethernet/allwinner/sun4i-emac.c @@ -828,13 +828,13 @@ static int emac_probe(struct platform_device *pdev) db->clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(db->clk)) { ret = PTR_ERR(db->clk); - goto out_iounmap; + goto out_dispose_mapping; } ret = clk_prepare_enable(db->clk); if (ret) { dev_err(&pdev->dev, "Error couldn't enable clock (%d)\n", ret); - goto out_iounmap; + goto out_dispose_mapping; } ret = sunxi_sram_claim(&pdev->dev); @@ -893,6 +893,8 @@ out_release_sram: sunxi_sram_release(&pdev->dev); out_clk_disable_unprepare: clk_disable_unprepare(db->clk); +out_dispose_mapping: + irq_dispose_mapping(ndev->irq); out_iounmap: iounmap(db->membase); out: @@ -911,6 +913,7 @@ static int emac_remove(struct platform_device *pdev) unregister_netdev(ndev); sunxi_sram_release(&pdev->dev); clk_disable_unprepare(db->clk); + irq_dispose_mapping(ndev->irq); iounmap(db->membase); free_netdev(ndev);