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=-6.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS 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 98D69C433ED for ; Mon, 8 Jun 2020 09:30:56 +0000 (UTC) Received: from web01.groups.io (web01.groups.io [66.175.222.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6B93B2076A for ; Mon, 8 Jun 2020 09:30:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=lists.cip-project.org header.i=@lists.cip-project.org header.b="wW5Lx5ZQ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6B93B2076A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=csie.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=bounce+64572+4748+4520388+8129055@lists.cip-project.org X-Received: by 127.0.0.2 with SMTP id WuqLYY4521723xLbfzfdT2CM; Mon, 08 Jun 2020 02:30:56 -0700 X-Received: from wens.tw (wens.tw [140.112.30.76]) by mx.groups.io with SMTP id smtpd.web12.26375.1591608655061703563 for ; Mon, 08 Jun 2020 02:30:55 -0700 X-Received: by wens.tw (Postfix, from userid 1000) id 6EF446010D; Mon, 8 Jun 2020 17:30:50 +0800 (CST) From: "Chen-Yu Tsai (Moxa)" To: nobuhiro1.iwamatsu@toshiba.co.jp, pavel@denx.de Cc: cip-dev@lists.cip-project.org, JohnsonCH.Chen@moxa.com Subject: [cip-dev] [PATCH 4.4.y-cip v2 14/15] cpufreq-dt: fix handling regulator_get_voltage() result Date: Mon, 8 Jun 2020 17:30:27 +0800 Message-Id: <20200608093028.21612-15-wens@csie.org> In-Reply-To: <20200608093028.21612-1-wens@csie.org> References: <20200608093028.21612-1-wens@csie.org> MIME-Version: 1.0 Precedence: Bulk List-Unsubscribe: Sender: cip-dev@lists.cip-project.org List-Id: Mailing-List: list cip-dev@lists.cip-project.org; contact cip-dev+owner@lists.cip-project.org Reply-To: cip-dev@lists.cip-project.org X-Gm-Message-State: rBeeVm8g5KOKaQ4o4SUdf03wx4520388AA= Content-Type: multipart/mixed; boundary="hm8nJ2dyvMkbtJlSNLKd" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=lists.cip-project.org; q=dns/txt; s=20140610; t=1591608656; bh=A+ajo4LnEsW55eccqSWGu+MJKCalUDbdKQFEA090Dl0=; h=Cc:Content-Type:Date:From:Reply-To:Subject:To; b=wW5Lx5ZQ/L7/n69QCxz33f+4cb40E1t0/RJaggSviuZbWiCssc3grRGNBbRhw7MO64v 3yJC7Se/JJ7dumc+QzPOy9vavz3UJz4Yn/V7v2s/rfkF1fhgRUzTWQeLUqXyUAAy5IdJ9 eyb/w2QASawbuheMs/rBWVc1T23bPi+Je2U= --hm8nJ2dyvMkbtJlSNLKd Content-Transfer-Encoding: quoted-printable From: Andrzej Hajda commit 929ca89c305a6ed7a4149115be99af6d73c36918 upstream. The function can return negative values so it should be assigned to signed type. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci. Link: http://permalink.gmane.org/gmane.linux.kernel/2038576 Signed-off-by: Andrzej Hajda Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki Signed-off-by: Chen-Yu Tsai (Moxa) --- drivers/cpufreq/cpufreq-dt.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c index 1ceece9d67112..9bc37c437874a 100644 --- a/drivers/cpufreq/cpufreq-dt.c +++ b/drivers/cpufreq/cpufreq-dt.c @@ -50,7 +50,8 @@ static int set_target(struct cpufreq_policy *policy, un= signed int index) struct private_data *priv =3D policy->driver_data; struct device *cpu_dev =3D priv->cpu_dev; struct regulator *cpu_reg =3D priv->cpu_reg; - unsigned long volt =3D 0, volt_old =3D 0, tol =3D 0; + unsigned long volt =3D 0, tol =3D 0; + int volt_old =3D 0; unsigned int old_freq, new_freq; long freq_Hz, freq_exact; int ret; @@ -83,7 +84,7 @@ static int set_target(struct cpufreq_policy *policy, un= signed int index) opp_freq / 1000, volt); } =20 - dev_dbg(cpu_dev, "%u MHz, %ld mV --> %u MHz, %ld mV\n", + dev_dbg(cpu_dev, "%u MHz, %d mV --> %u MHz, %ld mV\n", old_freq / 1000, (volt_old > 0) ? volt_old / 1000 : -1, new_freq / 1000, volt ? volt / 1000 : -1); =20 --=20 2.27.0.rc0 --hm8nJ2dyvMkbtJlSNLKd Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- Links: You receive all messages sent to this group. View/Reply Online (#4748): https://lists.cip-project.org/g/cip-dev/message= /4748 Mute This Topic: https://lists.cip-project.org/mt/74748509/4520388 Group Owner: cip-dev+owner@lists.cip-project.org Unsubscribe: https://lists.cip-project.org/g/cip-dev/leave/8129055/7279483= 98/xyzzy [cip-dev@archiver.kernel.org] -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- --hm8nJ2dyvMkbtJlSNLKd--