From patchwork Wed Jun 9 14:22:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: zpershuai X-Patchwork-Id: 12310297 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 D17EDC48BCD for ; Wed, 9 Jun 2021 14:23:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BCAE1613B8 for ; Wed, 9 Jun 2021 14:23:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237878AbhFIOYy (ORCPT ); Wed, 9 Jun 2021 10:24:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37164 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237810AbhFIOYp (ORCPT ); Wed, 9 Jun 2021 10:24:45 -0400 Received: from mail-pf1-x429.google.com (mail-pf1-x429.google.com [IPv6:2607:f8b0:4864:20::429]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9CF17C06175F; Wed, 9 Jun 2021 07:22:36 -0700 (PDT) Received: by mail-pf1-x429.google.com with SMTP id h12so15661350pfe.2; Wed, 09 Jun 2021 07:22:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=PDoBgeXGas8ONL+4xxWqdRXTO15tMUsAgoTQmxOnpK0=; b=C0YmE5h9l9ASPpHuN75UQGqMrb/OkBhyKVSkSt9iH+5kg3uUX5e1Cw7X9VLWwEz4Tw usB7I6HJCFWW5ZjNXbaUbFnpEdx4MKnGeGmOCWp0C2w+FLqJaQ4xN/JZFvfGBeT/1XzL GWXXbwzkMJ6SrokwfkCGxR0XlvmXi2EX6h5d7IVJ2ZZZxmUHWl2tpY8cfHZomWhJNswm DiEILbXiDyOLl3xH6zJDsongoirPnn3mlPbL6UfqDJDal5BRwubys/xzQkkF5lSnZw2X XD9fDeLRaEAJdnRjkaX+8cGHl8wo4+BeqWO4wnVDaFP2v9sKHdh5td4WxWRwpz4BqM4T fk8w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=PDoBgeXGas8ONL+4xxWqdRXTO15tMUsAgoTQmxOnpK0=; b=CVgWkZFKNdniXcnJpvB5xX4XlHfmTvOmCoegTq2FRnwePuan8r1YedabHndAfrsvIu bB42hbCYriin6xsPWuSEdMfIjDVul1DSpcZZn5me9t13XgE0Jd3HmhuC0yhwfXFrEJks Shd5vMHSsh14cuU0dsB22KVKD+PfpvgV7zR1kLYRoEV9fEZd/0lBS4lZzPjYNxnjyRag pGRU4P1KBRdboL9hUHmD964P+Fv2FygQ4ZCARJWZOtKs8mDN67cqxB0EKoUAAdVjmw2r EFavKgNQ+17eeSkbI4N7tUjLlw66JLvpX4LwT22hQODkjO9yJwNIlP7fkYJt9KfKWeO8 tpaw== X-Gm-Message-State: AOAM5306tsKkGyLH5ihX8s5NhYu4UcHPRRhMks3pJyX9ZdDocfR0Y0X+ yxot/JsLDjJPPHysQ4D2YCbt37z0Yo9dkCOCK6uk1Q== X-Google-Smtp-Source: ABdhPJwNfGVfozXjFPOmgigW9OaAlLh16hECyaYSxbmVCUR8PMj+EhBdPpirjL3Ntb0QGiy9Tbu6UQ== X-Received: by 2002:a65:4608:: with SMTP id v8mr4088470pgq.435.1623248556065; Wed, 09 Jun 2021 07:22:36 -0700 (PDT) Received: from localhost.members.linode.com ([2400:8902::f03c:92ff:fe55:8c1e]) by smtp.gmail.com with ESMTPSA id k21sm42920pgb.56.2021.06.09.07.22.33 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 09 Jun 2021 07:22:35 -0700 (PDT) From: zpershuai To: Mark Brown , Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , linux-spi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org Cc: zpershuai Subject: [PATCH] =?utf-8?q?Fix_some_wrong_goto_jumps=C2=A0for_avoiding_memor?= =?utf-8?q?y_leak=2E?= Date: Wed, 9 Jun 2021 22:22:18 +0800 Message-Id: <1623248538-4352-1-git-send-email-zpershuai@gmail.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org In meson_spifc_probe function, when enable the device pclk clock is error, it should use clk_disable_unprepare to release the core clock. And when meson_spicc_clk_init returns failed, it should goto the out_clk label. Signed-off-by: zpershuai --- drivers/spi/spi-meson-spicc.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/spi/spi-meson-spicc.c b/drivers/spi/spi-meson-spicc.c index ecba6b4..b2c4621 100644 --- a/drivers/spi/spi-meson-spicc.c +++ b/drivers/spi/spi-meson-spicc.c @@ -725,7 +725,7 @@ static int meson_spicc_probe(struct platform_device *pdev) ret = clk_prepare_enable(spicc->pclk); if (ret) { dev_err(&pdev->dev, "pclk clock enable failed\n"); - goto out_master; + goto out_core_clk; } device_reset_optional(&pdev->dev); @@ -752,7 +752,7 @@ static int meson_spicc_probe(struct platform_device *pdev) ret = meson_spicc_clk_init(spicc); if (ret) { dev_err(&pdev->dev, "clock registration failed\n"); - goto out_master; + goto out_clk; } ret = devm_spi_register_master(&pdev->dev, master); @@ -764,9 +764,11 @@ static int meson_spicc_probe(struct platform_device *pdev) return 0; out_clk: - clk_disable_unprepare(spicc->core); clk_disable_unprepare(spicc->pclk); +out_core_clk: + clk_disable_unprepare(spicc->core); + out_master: spi_master_put(master);