From patchwork Wed Nov 23 01:48:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: cuigaosheng X-Patchwork-Id: 13052923 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A95E4C433FE for ; Wed, 23 Nov 2022 01:49:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=AhQT4t6Rxei+O1nYD2iZzlne2ym5joouH5wR+V0XVxE=; b=inV+TGFbJQdaK3 86xY3Y9ZMX65ioxK6VwpAwzu8fDSb1BwK7SlW9crqymzIJGEizzNzy0Q2z1cfgD4uFvsDD6QcVmP0 yUcEZZKmPwpC9uyp2yC+jOVC8u++0+PyEpyXIzZuD4FatnQ90PeheAgkTy2C8GStEWfjBA2RE/Ke7 yIAOiPc4lygASnOUCze3BYhlGoMtZ8PsBzhNgkTQt2j7TinAOYrJABfWh1Lxopyr51o6mM2xu/qb3 M+m9gVi7D8MNU4FqGX7vvoAyhwXzpvocj7CSeGUveHYESQdB7Bvep5oFP1PZpoS9XwduF6Yi/fXx6 LYHOr9OXp45KVCufrJZg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oxes4-00Cki3-AR; Wed, 23 Nov 2022 01:48:16 +0000 Received: from szxga08-in.huawei.com ([45.249.212.255]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oxes1-00Ckf2-Bt for linux-arm-kernel@lists.infradead.org; Wed, 23 Nov 2022 01:48:15 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.53]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4NH3sh044gz15MpN; Wed, 23 Nov 2022 09:47:35 +0800 (CST) Received: from cgs.huawei.com (10.244.148.83) by kwepemi500012.china.huawei.com (7.221.188.12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Wed, 23 Nov 2022 09:48:05 +0800 From: Gaosheng Cui To: , , , , CC: , Subject: [PATCH v2] rtc: st-lpc: Add missing clk_disable_unprepare in st_rtc_probe() Date: Wed, 23 Nov 2022 09:48:05 +0800 Message-ID: <20221123014805.1993052-1-cuigaosheng1@huawei.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [10.244.148.83] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemi500012.china.huawei.com (7.221.188.12) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221122_174813_591970_D2C1D479 X-CRM114-Status: UNSURE ( 9.08 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The clk_disable_unprepare() should be called in the error handling of clk_get_rate(), fix it. Fixes: b5b2bdfc2893 ("rtc: st: Add new driver for ST's LPC RTC") Signed-off-by: Gaosheng Cui --- v2: - Update the commit message, thanks! drivers/rtc/rtc-st-lpc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/rtc/rtc-st-lpc.c b/drivers/rtc/rtc-st-lpc.c index bdb20f63254e..0f8e4231098e 100644 --- a/drivers/rtc/rtc-st-lpc.c +++ b/drivers/rtc/rtc-st-lpc.c @@ -238,6 +238,7 @@ static int st_rtc_probe(struct platform_device *pdev) rtc->clkrate = clk_get_rate(rtc->clk); if (!rtc->clkrate) { + clk_disable_unprepare(rtc->clk); dev_err(&pdev->dev, "Unable to fetch clock rate\n"); return -EINVAL; }