From patchwork Sun May 15 06:41:20 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anand Moon X-Patchwork-Id: 573624 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 767CCC433FE for ; Sun, 15 May 2022 06:42:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229836AbiEOGm2 (ORCPT ); Sun, 15 May 2022 02:42:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59076 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235865AbiEOGmY (ORCPT ); Sun, 15 May 2022 02:42:24 -0400 Received: from mail-pj1-x1036.google.com (mail-pj1-x1036.google.com [IPv6:2607:f8b0:4864:20::1036]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 12AAF21E1C; Sat, 14 May 2022 23:42:22 -0700 (PDT) Received: by mail-pj1-x1036.google.com with SMTP id l20-20020a17090a409400b001dd2a9d555bso11470591pjg.0; Sat, 14 May 2022 23:42:22 -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:in-reply-to:references :mime-version:content-transfer-encoding; bh=5SvJ/++bycunC3OKTAB9+JnJnOimY+H66XGtoS2w60s=; b=jrwaBKFl5d35QZ+3Gee2JrXoy7jVYCOzlLjUKMZ00zqNMc4yv3WfXcp3A1Irk2aD4y NHYe7fdu1w2rvINacTdaZsuNalurMXEFmu4dajXvHlIF6fEcGSuSAAmI821cUxO7UjLm T6xQdGAjpDNecUPguBmvEsOWjR1ScYtxo3v9VVkxtPaTlR+ZZ53VXeWYZQfx/fFNIilS az/p6n/0+RaYr0W8QnQe3gwjPHsOEx+GTyAjfDIEUoMbDqWNZW5aPLZENyceBVgKT/VO e8GRHJRCpNaEmFe89deWgZRv2GlMK56yVyuKiATL3+K/sJNTjosJiHhakkCww3cKbfZh 2EEw== 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=5SvJ/++bycunC3OKTAB9+JnJnOimY+H66XGtoS2w60s=; b=1/CVOIgl9axhSrIcOyuBRgNOdQTdFJ3sw8igd5FKKTnGoiekyo1gphKF5aG3I5qQec QQYo0eWS9/o7RG6Xr2RRVNRJCTufN9W8/XNfqGxauo6c6Zhele5UXz7+if/Pu+t5Nt1C efPrK98CSWHBpuopYuyFW2TBsqheMQteqkO4gMgJnzkvy9GjatVrJ9CG/PSWUJQZ+gTh dEHC5nGP1/y3Cu7W21q9k0LlU3LruztaRveDnyS/lU0EbblqG1wX+2Pg8oIAjZHUtDfK TKDgi2vtvHnp+VNV6L5Av32iV/syAHWIAMiC+nqRCfCwoIpuZxatXjkHnUxnoVRJgDWX 4fqg== X-Gm-Message-State: AOAM532JBzc9Mv2QeJJ0DpI+mwp4kJFpM+3WfAKEBGH+kVBnzKajfroI S7SL/94v/Zr31p6/rhU4fy4= X-Google-Smtp-Source: ABdhPJzWcVVfdugYBkVY7O80ZUsr97cxYMYWRp1vfSYA4vb0IAvOv+WNAehaqvlWeMBCDABHd9zg/A== X-Received: by 2002:a17:90a:ba11:b0:1df:2d09:1308 with SMTP id s17-20020a17090aba1100b001df2d091308mr3500270pjr.184.1652596941625; Sat, 14 May 2022 23:42:21 -0700 (PDT) Received: from alarm.. ([103.51.72.28]) by smtp.gmail.com with ESMTPSA id g24-20020a170902d5d800b0015e8d4eb2e3sm4568687plh.301.2022.05.14.23.42.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 14 May 2022 23:42:21 -0700 (PDT) From: Anand Moon To: Bartlomiej Zolnierkiewicz , Krzysztof Kozlowski , "Rafael J. Wysocki" , Daniel Lezcano , Amit Kucheria , Zhang Rui , Alim Akhtar , linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Anand Moon Subject: [PATCHv2 3/6] thermal: exynos: Check before clk_disable_unprepare() not needed Date: Sun, 15 May 2022 06:41:20 +0000 Message-Id: <20220515064126.1424-4-linux.amoon@gmail.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220515064126.1424-1-linux.amoon@gmail.com> References: <20220515064126.1424-1-linux.amoon@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org All code in clk_disable_unprepare() already checks the clk ptr using IS_ERR_OR_NULL so there is no need to check it again before calling it. A lot of other drivers already rely on this behaviour, so it's safe to do so here. Cc: Bartlomiej Zolnierkiewicz Signed-off-by: Anand Moon --- v1: improve the commit message --- drivers/thermal/samsung/exynos_tmu.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index 1ef90dc52c08..58ff1b577c47 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -289,8 +289,7 @@ static int exynos_tmu_initialize(struct platform_device *pdev) mutex_lock(&data->lock); clk_enable(data->clk); - if (!IS_ERR(data->clk_sec)) - clk_enable(data->clk_sec); + clk_enable(data->clk_sec); status = readb(data->base + EXYNOS_TMU_REG_STATUS); if (!status) { @@ -323,8 +322,7 @@ static int exynos_tmu_initialize(struct platform_device *pdev) err: clk_disable(data->clk); mutex_unlock(&data->lock); - if (!IS_ERR(data->clk_sec)) - clk_disable(data->clk_sec); + clk_disable(data->clk_sec); out: return ret; } @@ -1119,8 +1117,7 @@ static int exynos_tmu_probe(struct platform_device *pdev) err_thermal: thermal_zone_of_sensor_unregister(&pdev->dev, data->tzd); err_clk_sec: - if (!IS_ERR(data->clk_sec)) - clk_disable_unprepare(data->clk_sec); + clk_disable_unprepare(data->clk_sec); err_sclk: clk_disable_unprepare(data->sclk); err_clk_apbif: @@ -1142,8 +1139,7 @@ static int exynos_tmu_remove(struct platform_device *pdev) clk_disable_unprepare(data->sclk); clk_disable_unprepare(data->clk); - if (!IS_ERR(data->clk_sec)) - clk_disable_unprepare(data->clk_sec); + clk_disable_unprepare(data->clk_sec); if (!IS_ERR(data->regulator)) regulator_disable(data->regulator);