From patchwork Sun Mar 1 13:26:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: qiwuchen55@gmail.com X-Patchwork-Id: 212693 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=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, 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 EFCCCC3F2D1 for ; Sun, 1 Mar 2020 13:26:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B801421775 for ; Sun, 1 Mar 2020 13:26:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="BU/Yt0NS" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726204AbgCAN0o (ORCPT ); Sun, 1 Mar 2020 08:26:44 -0500 Received: from mail-pg1-f195.google.com ([209.85.215.195]:37884 "EHLO mail-pg1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725787AbgCAN0n (ORCPT ); Sun, 1 Mar 2020 08:26:43 -0500 Received: by mail-pg1-f195.google.com with SMTP id z12so4031332pgl.4 for ; Sun, 01 Mar 2020 05:26:43 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=1su01q6KFmll99qzXEcg9FRrNXepwO4Dn/UlCMlPU6k=; b=BU/Yt0NSo8hEjIq03x2ijsSo0ghx2MscCo+4tSyzTRpenVGdm9z0MjlP5FK7kBNoZR Lwr7LjDJ0NqCCssJqySMvIdrBRxtvFL3732z2kuHYB1FesYGWGP3jkRk508n3yKzOiHB 2SlEQo8ZY0p2M7oV0oSCTmSaxeXUzvPpreX7NvZIIVRnqjVARC1MzJf0GY0L9kBDhOJn RTtSHOCDFBjJM5ImMCpGVwi3HMDk46Aq6ZYsDfIB6t6DY/7FfYDIPtCoYoFK45N4tlS8 oT9VWF+ev7QAIGm4CDca7Mksz9fd7+aSs2sM5CMUGSfvVjOTVNFxVz5GxMl04Bq/BzOK ZsHg== 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; bh=1su01q6KFmll99qzXEcg9FRrNXepwO4Dn/UlCMlPU6k=; b=jiGVAafvivkWLWa1grI8uSNHMkvzzIc8kqD0QUGLa2nzufTgcQtt4h4XiTvoSnmqwg aDnQV60tTcbBIbb+0kHJScIAC9jAipjEuCv8H27+wfbSczWdn/qE3blhJlxLRGpe4c06 +KXlZktF4geptpKKDfWcqaTO/K0QuGxq35wpRbP/UCzPPXGyx6suZWCGs4p/qtVRsfPQ BtwrW5bMrtMIQXRtjqY+WM5+iRadeRVKiVHgHWsfUaPhvs+zNHNjo/AZ+nzZQblJo0dw vk76Y3zoElFnhUX6fCZsbXIMU88LE7RjWbpZPqczvbxKK6evQ2Jai/x8laS/kE58zklZ IYAg== X-Gm-Message-State: APjAAAXJ1+qbEhYoBc47sJV4aIgYd8fQYt1W+z+anINQFlwONB4cSUsa b4WezqTgi+ei7Q1Fu285yMM= X-Google-Smtp-Source: APXvYqyCHxKHHKz7A0SOsnAONlCfYpbKIpBMxJk7gu/FxW6k0vKaYTmDAdq2Wy7ioX5w31ypcDcdYw== X-Received: by 2002:a63:fe43:: with SMTP id x3mr14958262pgj.119.1583069202898; Sun, 01 Mar 2020 05:26:42 -0800 (PST) Received: from localhost ([43.224.245.179]) by smtp.gmail.com with ESMTPSA id w17sm12445333pfg.33.2020.03.01.05.26.41 (version=TLS1_2 cipher=AES128-SHA bits=128/128); Sun, 01 Mar 2020 05:26:42 -0800 (PST) From: qiwuchen55@gmail.com To: rjw@rjwysocki.net, viresh.kumar@linaro.org Cc: linux-pm@vger.kernel.org, chenqiwu Subject: [PATCH] cpufreq: fix a mem leak caused by policy->max_freq_req in cpufreq_policy_free() Date: Sun, 1 Mar 2020 21:26:38 +0800 Message-Id: <1583069198-21060-1-git-send-email-qiwuchen55@gmail.com> X-Mailer: git-send-email 1.9.1 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org From: chenqiwu There is a mem leak in cpufreq_policy_free() that the resource of policy->max_freq_req pointer is not free. Signed-off-by: chenqiwu --- drivers/cpufreq/cpufreq.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index cbe6c94..6756f7a 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1280,6 +1280,8 @@ static void cpufreq_policy_free(struct cpufreq_policy *policy) blocking_notifier_call_chain(&cpufreq_policy_notifier_list, CPUFREQ_REMOVE_POLICY, policy); freq_qos_remove_request(policy->max_freq_req); + kfree(policy->max_freq_req); + policy->max_freq_req = NULL; } freq_qos_remove_request(policy->min_freq_req);