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=-9.8 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=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 4EF53C433FF for ; Tue, 30 Jul 2019 16:32:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 25866206A2 for ; Tue, 30 Jul 2019 16:32:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="AAghT0ws" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728217AbfG3Qce (ORCPT ); Tue, 30 Jul 2019 12:32:34 -0400 Received: from mail-wr1-f66.google.com ([209.85.221.66]:45979 "EHLO mail-wr1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732835AbfG3Qca (ORCPT ); Tue, 30 Jul 2019 12:32:30 -0400 Received: by mail-wr1-f66.google.com with SMTP id f9so66460177wre.12; Tue, 30 Jul 2019 09:32:29 -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=AAghT0wsfPhV/j6U/ghiBwRe0n/heMMEDTKhX2F4Ap9PQ0gtxj9cOQMPDtVpf1ZA/Y krISxNXiKhB/09kR6KwRsOdNFTzIcf3UjK0jRxbHmy3fvqHoG5hp+gxz4B+mnY4IKcW3 jTy43gQNCP4Tdml8w/wbqZo5jKjqwBHV2pDkpuhXsjiwXWypGHf0IsafhHKAKneOTrDs VSkA7xIUDqmMl9Babs+F8HtxIR2AFJhFKqd5J979soBf8Q8+3MTnkFuYYokY/4X50q2K O0yupl8qcgZoBfAe2jx0SUzeRYngNIL0PhuDadvxR8YwGhx/oR9FGB+u45y32nW7Mp1r /1xA== 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=B0i39xTkpg2LJKgK5ft855jvBqJvSWNlL3myr4jMPSKeVohNc6qY6L3lAd78c4RpbO RpJddkxfh8XG6akU+HmNnM5Jq6q0C5ac/sm5LOQSfu1RiNnfjuJQuQgYbnSYqdbBf5oR Iqcuj6aZImD4vfmOUS2g9qx3cnwGeT77APu+LUT+GQj3veQuChqjiZMaKaNhxhc8yHbB WZfW9JyN/Sd1M7sXR/uoOUOkL7356o1ePtn+L1UPYrFx0WwLme3wYBn367hLeuyEen7D TQO/IeLbzi4UQlI4m1VEMFDFjH1vzm6sWZN+HgwBqpVbn36Zm5k8l1KC27fIo9qnEKeL 4z/Q== X-Gm-Message-State: APjAAAU1xzFcgIKaOKIflbCllQ0uj3QiCoW/f/c3OMqdo6OHwJxNuI3W SHaO+y1Nir6xjHNTBm//lic= X-Google-Smtp-Source: APXvYqyEu3zYvYk5Z8X5j1eud/4T36h60HChVLwgzdl/ZXaiN1ilLV6HKBPnYOMEz55QfG+dw+3DXA== X-Received: by 2002:adf:e552:: with SMTP id z18mr131981622wrm.45.1564504349166; Tue, 30 Jul 2019 09:32:29 -0700 (PDT) Received: from localhost.localdomain (ppp91-78-220-99.pppoe.mtu-net.ru. [91.78.220.99]) by smtp.gmail.com with ESMTPSA id c65sm64835175wma.44.2019.07.30.09.32.28 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 30 Jul 2019 09:32:28 -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 v5 08/20] PM / devfreq: tegra30: Ensure that target freq won't overflow Date: Tue, 30 Jul 2019 19:22:24 +0300 Message-Id: <20190730162236.6063-9-digetx@gmail.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190730162236.6063-1-digetx@gmail.com> References: <20190730162236.6063-1-digetx@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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