From patchwork Thu Oct 19 03:48:09 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeffy Chen X-Patchwork-Id: 10015929 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id D1B7C60215 for ; Thu, 19 Oct 2017 03:52:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C0AF12897F for ; Thu, 19 Oct 2017 03:52:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B509328B7B; Thu, 19 Oct 2017 03:52:07 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 43C962897F for ; Thu, 19 Oct 2017 03:52:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To: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:List-Owner; bh=HaHQeMVVLeay8L0hi8zHGYSsh+LpLCVy5YF+2d0JMj8=; b=p4DuUfkXOQpgsk+heGTRsMBpIO 3i8h/qdlyEVDQ5wZFY1bBixXkiSGXkET4bPzquxbnqIWztnIoNhKeux7QmkdNrjGJ9yKgVyMxM1dj 1gE5cbBsaoOh/QQoJJfBXwJBcD3HoDFEKgi040gKr3ERCoanKQs+qQrk3xq5vo/vXpU4apycp/8f9 hwVFBdQBFgbkkPKQZhv80Uw0VtvwkoKLCwkAczqTGYH+WY22FCnoy1/c0Gcrah4WCP3GoarX5m4h0 N+5fVSeyki0ngYWiIEC25PAj36nl10HMU8R7ohRydoiL3W2n6EHaC97XrVF971FrclNKe/GmM3Qkq R7kKAiAQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1e51s0-0003ot-4Y; Thu, 19 Oct 2017 03:51:44 +0000 Received: from regular1.263xmail.com ([211.150.99.130]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1e51q8-00013W-5M; Thu, 19 Oct 2017 03:49:54 +0000 Received: from jeffy.chen?rock-chips.com (unknown [192.168.167.158]) by regular1.263xmail.com (Postfix) with ESMTP id 746F1B075; Thu, 19 Oct 2017 11:49:24 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 Received: from localhost (localhost [127.0.0.1]) by smtp.263.net (Postfix) with ESMTPA id EED8D375; Thu, 19 Oct 2017 11:49:20 +0800 (CST) X-RL-SENDER: jeffy.chen@rock-chips.com X-FST-TO: linux-kernel@vger.kernel.org X-SENDER-IP: 103.29.142.67 X-LOGIN-NAME: jeffy.chen@rock-chips.com X-UNIQUE-TAG: <42fd8e91c27564e1726e96b1309f6081> X-ATTACHMENT-NUM: 0 X-SENDER: cjf@rock-chips.com X-DNS-TYPE: 0 Received: from localhost (unknown [103.29.142.67]) by smtp.263.net (Postfix) whith ESMTP id 320054XIRVL; Thu, 19 Oct 2017 11:49:24 +0800 (CST) From: Jeffy Chen To: linux-kernel@vger.kernel.org Subject: [PATCH v6 07/10] drm/rockchip: inno_hdmi: Fix error handling path Date: Thu, 19 Oct 2017 11:48:09 +0800 Message-Id: <20171019034812.13768-8-jeffy.chen@rock-chips.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20171019034812.13768-1-jeffy.chen@rock-chips.com> References: <20171019034812.13768-1-jeffy.chen@rock-chips.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20171018_204948_922438_A7932826 X-CRM114-Status: UNSURE ( 9.21 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: briannorris@chromium.org, heiko@sntech.de, David Airlie , Jeffy Chen , dianders@chromium.org, dri-devel@lists.freedesktop.org, tfiga@chromium.org, linux-rockchip@lists.infradead.org, seanpaul@chromium.org, linux-arm-kernel@lists.infradead.org, Mark Yao MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Add missing error handling in bind(). Fixes: 412d4ae6b7a5 ("drm/rockchip: hdmi: add Innosilicon HDMI support") Signed-off-by: Jeffy Chen Acked-by: Mark Yao --- Changes in v6: None Changes in v5: Call the destroy hook in the error handling path like in unbind(). Update cleanup order in unbind(). drivers/gpu/drm/rockchip/inno_hdmi.c | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/rockchip/inno_hdmi.c b/drivers/gpu/drm/rockchip/inno_hdmi.c index ee584d87111f..9a96ff6b022b 100644 --- a/drivers/gpu/drm/rockchip/inno_hdmi.c +++ b/drivers/gpu/drm/rockchip/inno_hdmi.c @@ -851,8 +851,10 @@ static int inno_hdmi_bind(struct device *dev, struct device *master, } irq = platform_get_irq(pdev, 0); - if (irq < 0) - return irq; + if (irq < 0) { + ret = irq; + goto err_disable_clk; + } inno_hdmi_reset(hdmi); @@ -860,7 +862,7 @@ static int inno_hdmi_bind(struct device *dev, struct device *master, if (IS_ERR(hdmi->ddc)) { ret = PTR_ERR(hdmi->ddc); hdmi->ddc = NULL; - return ret; + goto err_disable_clk; } /* @@ -874,7 +876,7 @@ static int inno_hdmi_bind(struct device *dev, struct device *master, ret = inno_hdmi_register(drm, hdmi); if (ret) - return ret; + goto err_put_adapter; dev_set_drvdata(dev, hdmi); @@ -884,7 +886,17 @@ static int inno_hdmi_bind(struct device *dev, struct device *master, ret = devm_request_threaded_irq(dev, irq, inno_hdmi_hardirq, inno_hdmi_irq, IRQF_SHARED, dev_name(dev), hdmi); + if (ret < 0) + goto err_cleanup_hdmi; + return 0; +err_cleanup_hdmi: + hdmi->connector.funcs->destroy(&hdmi->connector); + hdmi->encoder.funcs->destroy(&hdmi->encoder); +err_put_adapter: + i2c_put_adapter(hdmi->ddc); +err_disable_clk: + clk_disable_unprepare(hdmi->pclk); return ret; } @@ -896,8 +908,8 @@ static void inno_hdmi_unbind(struct device *dev, struct device *master, hdmi->connector.funcs->destroy(&hdmi->connector); hdmi->encoder.funcs->destroy(&hdmi->encoder); - clk_disable_unprepare(hdmi->pclk); i2c_put_adapter(hdmi->ddc); + clk_disable_unprepare(hdmi->pclk); } static const struct component_ops inno_hdmi_ops = {