From patchwork Mon Jul 12 06:07:39 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 475760 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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 E3BFAC07E9B for ; Mon, 12 Jul 2021 07:12:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C704B6100B for ; Mon, 12 Jul 2021 07:12:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242914AbhGLHOr (ORCPT ); Mon, 12 Jul 2021 03:14:47 -0400 Received: from mail.kernel.org ([198.145.29.99]:49360 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244280AbhGLHN0 (ORCPT ); Mon, 12 Jul 2021 03:13:26 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 6EF966100B; Mon, 12 Jul 2021 07:10:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626073837; bh=zaS61qxelV4ai8TDO50YLAGe/WQFT3qtYWqPKSLj+9U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rbr5ATYy2b/WX5ZdWqlsoQ/mCeQhLPPCjUAhoUKLHX2z9YXvEGcuUTBpcMmebWGA4 YA8ecGyfCxQP46AKIuSRRPZAOfXett3bP1qqoHkf0oMS4sYH2E9057SlMFoWqUVJ3F om+E1x+QOYHN51ExmWBNhIWs28Q9BTFk1gt71AUE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hulk Robot , Yang Yingliang , Heiko Stuebner , Sasha Levin Subject: [PATCH 5.12 376/700] drm/rockchip: cdn-dp-core: add missing clk_disable_unprepare() on error in cdn_dp_grf_write() Date: Mon, 12 Jul 2021 08:07:39 +0200 Message-Id: <20210712061016.341143343@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210712060924.797321836@linuxfoundation.org> References: <20210712060924.797321836@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Yang Yingliang [ Upstream commit ae41d925c75b53798f289c69ee8d9f7d36432f6d ] 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 Signed-off-by: Heiko Stuebner Link: https://patchwork.freedesktop.org/patch/msgid/20210519134928.2696617-1-yangyingliang@huawei.com Signed-off-by: Sasha Levin --- 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; }