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 X-Spam-Level: X-Spam-Status: No, score=-9.6 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=unavailable 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 B1131C0650F for ; Sun, 11 Aug 2019 21:25:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 81D3521880 for ; Sun, 11 Aug 2019 21:25:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="IW7Zur0S" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726948AbfHKVZi (ORCPT ); Sun, 11 Aug 2019 17:25:38 -0400 Received: from mail-lj1-f193.google.com ([209.85.208.193]:45348 "EHLO mail-lj1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726626AbfHKVYn (ORCPT ); Sun, 11 Aug 2019 17:24:43 -0400 Received: by mail-lj1-f193.google.com with SMTP id t3so8078326ljj.12; Sun, 11 Aug 2019 14:24:42 -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:in-reply-to:references :mime-version:content-transfer-encoding; bh=8iZqkZqXjTfAXjJSJnLg5xR1FkU/5dVzGt00ebVBBCo=; b=IW7Zur0Sb2bl1EsIa3wcpM/Goklf8Dqbc2Gape4C5nuMApNEADUdr0iY4VcJi4uwxD bnKWzzEoAp0l/RTxGYNoYmXw6gCfwqp9xb99D6qk6xycerNKkoRSDvv7HtyiNNa1ZpiE fiJx+T8JaWc1OU0FL23bNAJcTEHkUe0O+rByqRR6g1VUs0Yt6wT0OomkhCgSjAt8VTdc qN56pNIZ44GQW6Lz07KCv5xyR5N7/UcrVZGmQt4FaBn/GEOS5co+7g05kuXxnyRhOoDD pPGaFkigvSKnadviR82o7aKaqXnrX/ORfb7NAoG8y+/uvyWMZaDkb3ttYyfitmBxoRfG MReg== 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=8iZqkZqXjTfAXjJSJnLg5xR1FkU/5dVzGt00ebVBBCo=; b=JWnxRv8AxI4fUn77oq9ZoRlQhW0uCMLfxYcouYoTYff5CBWh+9uI1e06Kj8ZfLZNOD ET8r0LdT0oxHGM44pWveCCS/EcuM6jkWPtvhamcDKT2F3sq14IIRCa0Q5rWpYEk0nrx8 oogAVirGy66Fo2eJiJNHCaDPIDDUVpdjk08i8g+SGcSGH9VNzWmOzwU2iQVUav+aw5W5 W5yPQHRXFyN3/s4ZthVygpWXdCrVtMa3hSJT9cHHoM1lbkf/2dbgJjOHGcDROdsIo0Lq CUjKjIGzyWPb4/uEg72trh6iXq66c3uDyyqehRjNd2BSlj3s69TqTqUAKTmfO/728I8Z a3tA== X-Gm-Message-State: APjAAAV6Bet+u22Z5BqMRPqoQ3ie91t73QNMvrz43LJrbPoXnrijWTaH 5/yw4vp0NTC+JTywpAUgI3A= X-Google-Smtp-Source: APXvYqya0zCiYcOoJRRq2kn3mBYGFFSvmTYY9YIjtGxboGLtlI1nvjKso8rkvFoY3s6j9g+bhH5/HQ== X-Received: by 2002:a2e:970a:: with SMTP id r10mr16237270lji.115.1565558681453; Sun, 11 Aug 2019 14:24:41 -0700 (PDT) Received: from localhost.localdomain ([94.29.34.218]) by smtp.gmail.com with ESMTPSA id f1sm20470806ljk.86.2019.08.11.14.24.40 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 11 Aug 2019 14:24:41 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , MyungJoo Ham , Kyungmin Park , Chanwoo Choi , Jonathan Hunter , Tomeu Vizoso Cc: linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v6 08/19] PM / devfreq: tegra30: Ensure that target freq won't overflow Date: Mon, 12 Aug 2019 00:23:04 +0300 Message-Id: <20190811212315.12689-9-digetx@gmail.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190811212315.12689-1-digetx@gmail.com> References: <20190811212315.12689-1-digetx@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org We already had few integer overflow bugs, let's limit the freq for consistency. Signed-off-by: Dmitry Osipenko --- drivers/devfreq/tegra30-devfreq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/devfreq/tegra30-devfreq.c b/drivers/devfreq/tegra30-devfreq.c index 70dce58212a4..ca499368ee81 100644 --- a/drivers/devfreq/tegra30-devfreq.c +++ b/drivers/devfreq/tegra30-devfreq.c @@ -430,7 +430,7 @@ static unsigned long actmon_update_target(struct tegra_devfreq *tegra, target_freq = dev->avg_count / ACTMON_SAMPLING_PERIOD + dev->boost_freq; target_freq = tegra_actmon_account_cpu_freq(tegra, dev, target_freq); - return target_freq; + return min(target_freq, tegra->max_freq); } static irqreturn_t actmon_thread_isr(int irq, void *data) -- 2.22.0