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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 44AFDC433B4 for ; Wed, 19 May 2021 13:47:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1BA366108D for ; Wed, 19 May 2021 13:47:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353767AbhESNsf (ORCPT ); Wed, 19 May 2021 09:48:35 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:3601 "EHLO szxga06-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346671AbhESNse (ORCPT ); Wed, 19 May 2021 09:48:34 -0400 Received: from dggems703-chm.china.huawei.com (unknown [172.30.72.58]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4FlYyd3rkxzmX7b; Wed, 19 May 2021 21:44:57 +0800 (CST) Received: from dggpeml500017.china.huawei.com (7.185.36.243) by dggems703-chm.china.huawei.com (10.3.19.180) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Wed, 19 May 2021 21:47:13 +0800 Received: from huawei.com (10.175.103.91) by dggpeml500017.china.huawei.com (7.185.36.243) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Wed, 19 May 2021 21:47:13 +0800 From: Yang Yingliang To: , , , CC: , Subject: [PATCH -next] drm/rockchip: cdn-dp-core: add missing clk_disable_unprepare() on error in cdn_dp_grf_write() Date: Wed, 19 May 2021 21:49:28 +0800 Message-ID: <20210519134928.2696617-1-yangyingliang@huawei.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.103.91] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To dggpeml500017.china.huawei.com (7.185.36.243) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org After calling clk_prepare_enable(), clk_disable_unprepare() need be called when calling regmap_write() failed. Fixes: 1a0f7ed3abe2 ("drm/rockchip: cdn-dp: add cdn DP support for rk3399") Reported-by: Hulk Robot Signed-off-by: Yang Yingliang --- drivers/gpu/drm/rockchip/cdn-dp-core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c index a4a45daf93f2..6802d9b65f82 100644 --- a/drivers/gpu/drm/rockchip/cdn-dp-core.c +++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c @@ -73,6 +73,7 @@ static int cdn_dp_grf_write(struct cdn_dp_device *dp, ret = regmap_write(dp->grf, reg, val); if (ret) { DRM_DEV_ERROR(dp->dev, "Could not write to GRF: %d\n", ret); + clk_disable_unprepare(dp->grf_clk); return ret; } -- 2.25.1