From patchwork Sun Jun 19 22:29:39 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christian Marangi X-Patchwork-Id: 12886867 X-Patchwork-Delegate: cw00.choi@samsung.com 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 D8662C433EF for ; Sun, 19 Jun 2022 22:30:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229965AbiFSWaC (ORCPT ); Sun, 19 Jun 2022 18:30:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50308 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229573AbiFSWaB (ORCPT ); Sun, 19 Jun 2022 18:30:01 -0400 Received: from mail-ej1-x635.google.com (mail-ej1-x635.google.com [IPv6:2a00:1450:4864:20::635]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E4B44A447; Sun, 19 Jun 2022 15:30:00 -0700 (PDT) Received: by mail-ej1-x635.google.com with SMTP id y19so17814274ejq.6; Sun, 19 Jun 2022 15:30:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=8D8HPXSeJ7Wq8gI4AgA5yZmGmYBQ/tmS39eh3e7yPls=; b=kXAJ/WguNOLHDfnTYFC9KJYpyWYve+QFQKUcY+C6EM++81doOJV6QAG/AfuUNMPyKv +QcP0NJU0jSH572Da7tsrEAdAjEuurDCdJ0HPe3UMcxIu4+FVrP3bx6rwtA8Zzh3uGvr rF/Utq4mQqBod2Faw+0eDbYwvfq9lg+PAnpf/f17B+1GT/ztVJsEPHBDRkPHQHOzK6j/ f9gFmXepkgfw+fBxAfen4j8g+UXNo41bFTcpPkRC+eWLHVCuh5b6guJ4qOYuKy70gQgN AM6UcvYqwM0mL6nVuSKT7ZAzMzNUswg/ytqXvdn8gCUIhMAv8WbtXfWX9UcIc7Qk2+Jn lCkQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=8D8HPXSeJ7Wq8gI4AgA5yZmGmYBQ/tmS39eh3e7yPls=; b=YLr8eM4j+HX+VXwcGm02ZSHWvesLQnvdPX2LIB9A5mtUNvaFvvZisQw8xgzWkmVuHQ TfAuwWBO3ih9VRnI6gs5hi/6hk1hJmWDjFl+vlJmWePWR8Rei8pYzMu32r8bAN/3ISRC Nzc0m+cUhFZPCDFMOqM9g+i8/rSSyNWhAuR+iADL5QzTy7uPVIf1ixUTijg4l43/wATM 7wsnnJgivWwRfaj85e9br5bwOayjmLWvbiOwrfN0MqACj9pdG883qb8q5jf7RNdkwifB IcC3E3PsQ9rN3mtmhOnr1SOBprEZ7IaDNGIlLat6dHH10N/cgt0mF3KRkeK8Jql98ffo p7Gg== X-Gm-Message-State: AJIora9EiMND9Ww0zh1yGQt86XYvBskOUR5ah4M4ErBVfA3/fgXBFDxv li6nmCTviDCtb27S+mGC7MUIKNvwN3Q= X-Google-Smtp-Source: AGRyM1s6lmelPXylVYiDfXc5wEtncueTziFanYQ7JyYf0PbybUGktOBcwFoz5Eo9e6Gx47tkOVLVaA== X-Received: by 2002:a17:907:a40f:b0:71c:3ffc:530a with SMTP id sg15-20020a170907a40f00b0071c3ffc530amr16124989ejc.672.1655677799309; Sun, 19 Jun 2022 15:29:59 -0700 (PDT) Received: from localhost.localdomain (93-42-70-190.ip85.fastwebnet.it. [93.42.70.190]) by smtp.googlemail.com with ESMTPSA id x2-20020a05640225c200b0043559d9e8b9sm7200083edb.53.2022.06.19.15.29.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 19 Jun 2022 15:29:58 -0700 (PDT) From: Christian Marangi To: MyungJoo Ham , Kyungmin Park , Chanwoo Choi , Sibi Sankar , Saravana Kannan , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Christian Marangi Subject: [PATCH] PM / devfreq: Fix kernel warning with cpufreq passive register fail Date: Mon, 20 Jun 2022 00:29:39 +0200 Message-Id: <20220619222939.32029-1-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.36.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Remove cpufreq_passive_unregister_notifier from cpufreq_passive_register_notifier in case of error as devfreq core already call unregister on GOV_START fail. This fix the kernel always printing a WARN on governor PROBE_DEFER as cpufreq_passive_unregister_notifier is called two times and return error on the second call as the cpufreq is already unregistered. Fixes: a03dacb0316f ("PM / devfreq: Add cpu based scaling support to passive governor") Signed-off-by: Christian Marangi --- drivers/devfreq/governor_passive.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/devfreq/governor_passive.c b/drivers/devfreq/governor_passive.c index 72c67979ebe1..8055801cf182 100644 --- a/drivers/devfreq/governor_passive.c +++ b/drivers/devfreq/governor_passive.c @@ -336,7 +336,6 @@ static int cpufreq_passive_register_notifier(struct devfreq *devfreq) err_put_policy: cpufreq_cpu_put(policy); err: - WARN_ON(cpufreq_passive_unregister_notifier(devfreq)); return ret; }