From patchwork Tue Nov 3 07:49:09 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qinglang Miao X-Patchwork-Id: 11876127 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 80E7B92A for ; Tue, 3 Nov 2020 07:44:15 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4034C2222B for ; Tue, 3 Nov 2020 07:44:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="G7vGAEkw" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4034C2222B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject: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=J147dujfLZ2VAeBjNQkhazkuJj5tfzC6iDdcIfjYPLw=; b=G7vGAEkwrR3XnIEpXqyGhRlNHj 4YryDI5kRCstaqAFI+s//9Mqr80RtaKVAzBRXXX4hOnh9NoWzj7I85D1urQKc340deadvextEyFPz GsimiBaJVEXUtR84/EXGXW7Ss2yzM2sYkNozhBcclZoZCC0ejHiUBsQRiDXsTYSJkb0Ot7X8nstvR Sy4A9XMW+hOEyKocvyrm/DBlAORa0LMQe68mG2FCe74aR40xnF44WfCqCeHVeths0HugKYxaLaZjx qxYiTEYy/th1HfqLTcfE6GtRZyxMSVZE7iJfeOLBHYI4+9pcfDddxUnAPcZooFuerPWrFKkzX4RwZ 3blWlBuw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kZqz8-00020F-JG; Tue, 03 Nov 2020 07:44:06 +0000 Received: from szxga07-in.huawei.com ([45.249.212.35]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kZqyv-0001vJ-WB; Tue, 03 Nov 2020 07:43:55 +0000 Received: from DGGEMS406-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga07-in.huawei.com (SkyGuard) with ESMTP id 4CQMGj6Slbz71th; Tue, 3 Nov 2020 15:43:41 +0800 (CST) Received: from localhost.localdomain.localdomain (10.175.113.25) by DGGEMS406-HUB.china.huawei.com (10.3.19.206) with Microsoft SMTP Server id 14.3.487.0; Tue, 3 Nov 2020 15:43:33 +0800 From: Qinglang Miao To: Jonathan Cameron , Lars-Peter Clausen , Peter Meerwald-Stadler , Heiko Stuebner Subject: [PATCH v2] iio: adc: rockchip_saradc: fix missing clk_disable_unprepare() on error in rockchip_saradc_resume Date: Tue, 3 Nov 2020 15:49:09 +0800 Message-ID: <20201103074909.195465-1-miaoqinglang@huawei.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201103_024354_385861_30C78C01 X-CRM114-Status: GOOD ( 11.38 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [45.249.212.35 listed in list.dnswl.org] 0.0 RCVD_IN_MSPIKE_H4 RBL: Very Good reputation (+4) [45.249.212.35 listed in wl.mailspike.net] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.0 RCVD_IN_MSPIKE_WL Mailspike good senders X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-iio@vger.kernel.org, linux-rockchip@lists.infradead.org, Qinglang Miao , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org Fix the missing clk_disable_unprepare() of info->pclk before return from rockchip_saradc_resume in the error handling case when fails to prepare and enable info->clk. Fixes: 44d6f2ef94f9 ("iio: adc: add driver for Rockchip saradc") Signed-off-by: Qinglang Miao --- drivers/iio/adc/rockchip_saradc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/iio/adc/rockchip_saradc.c b/drivers/iio/adc/rockchip_saradc.c index 1f3d7d639..5eb566274 100644 --- a/drivers/iio/adc/rockchip_saradc.c +++ b/drivers/iio/adc/rockchip_saradc.c @@ -461,9 +461,10 @@ static int rockchip_saradc_resume(struct device *dev) return ret; ret = clk_prepare_enable(info->clk); - if (ret) + if (ret) { + clk_disable_unprepare(info->pclk); return ret; - + } return ret; } #endif