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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 145FEC3B1A4 for ; Fri, 14 Feb 2020 17:03:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D7DA020656 for ; Fri, 14 Feb 2020 17:03:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581699819; bh=Wt3NAeACM4K4qNvn/QVuLHb67CRV4buzK2nKtMV9C+Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=zWVCdK4E5jlDKywBgjx2yOxGlTvIVOb9i6fD+1iFXeBLwas/iZEPSmnA1f8cvAxXZ fi54tux0Qh9V6y6gifQi0Mbq7J2XZv1DquhuRmpejKWWPuHgYG2NpCvC8NcOcnuvZJ DPyfEZ+gSGIFJYZNyuA1YmLfVuYKcgLa4P4UoziE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404168AbgBNQPx (ORCPT ); Fri, 14 Feb 2020 11:15:53 -0500 Received: from mail.kernel.org ([198.145.29.99]:46390 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404163AbgBNQPx (ORCPT ); Fri, 14 Feb 2020 11:15:53 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8875B246C3; Fri, 14 Feb 2020 16:15:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581696952; bh=Wt3NAeACM4K4qNvn/QVuLHb67CRV4buzK2nKtMV9C+Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Z3DHzxAT35yTjMoBglItS4K51T8cqVq3Enyok856Anma08lxszn4RmCqNREu+2BKk LTyLO7lX9aTmd2+aNLVq6Tx8toOgH3svUMxFV2tJS51KaUVIMxS79U5VmjDLBZuNy9 LG21ZbePjJCVRKWkbHxezWQyJvScTSSYF3fSS6Bg= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: yu kuai , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= , Thierry Reding , Sasha Levin , linux-pwm@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 193/252] pwm: Remove set but not set variable 'pwm' Date: Fri, 14 Feb 2020 11:10:48 -0500 Message-Id: <20200214161147.15842-193-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200214161147.15842-1-sashal@kernel.org> References: <20200214161147.15842-1-sashal@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: yu kuai [ Upstream commit 9871abffc81048e20f02e15d6aa4558a44ad53ea ] Fixes gcc '-Wunused-but-set-variable' warning: drivers/pwm/pwm-pca9685.c: In function ‘pca9685_pwm_gpio_free’: drivers/pwm/pwm-pca9685.c:162:21: warning: variable ‘pwm’ set but not used [-Wunused-but-set-variable] It is never used, and so can be removed. In that case, hold and release the lock 'pca->lock' can be removed since nothing will be done between them. Fixes: e926b12c611c ("pwm: Clear chip_data in pwm_put()") Signed-off-by: yu kuai Acked-by: Uwe Kleine-König Signed-off-by: Thierry Reding Signed-off-by: Sasha Levin --- drivers/pwm/pwm-pca9685.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/pwm/pwm-pca9685.c b/drivers/pwm/pwm-pca9685.c index 567f5e2771c47..e1e5dfcb16f36 100644 --- a/drivers/pwm/pwm-pca9685.c +++ b/drivers/pwm/pwm-pca9685.c @@ -170,13 +170,9 @@ static void pca9685_pwm_gpio_set(struct gpio_chip *gpio, unsigned int offset, static void pca9685_pwm_gpio_free(struct gpio_chip *gpio, unsigned int offset) { struct pca9685 *pca = gpiochip_get_data(gpio); - struct pwm_device *pwm; pca9685_pwm_gpio_set(gpio, offset, 0); pm_runtime_put(pca->chip.dev); - mutex_lock(&pca->lock); - pwm = &pca->chip.pwms[offset]; - mutex_unlock(&pca->lock); } static int pca9685_pwm_gpio_get_direction(struct gpio_chip *chip, -- 2.20.1