From patchwork Wed Aug 19 03:04:56 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dinghao Liu X-Patchwork-Id: 11722719 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 B9245618 for ; Wed, 19 Aug 2020 06:57:27 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 A19B920825 for ; Wed, 19 Aug 2020 06:57:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A19B920825 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=zju.edu.cn Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 83EB56E1D3; Wed, 19 Aug 2020 06:57:03 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org X-Greylist: delayed 1056 seconds by postgrey-1.36 at gabe; Wed, 19 Aug 2020 03:22:45 UTC Received: from zju.edu.cn (mail.zju.edu.cn [61.164.42.155]) by gabe.freedesktop.org (Postfix) with ESMTP id 9B1056E19A for ; Wed, 19 Aug 2020 03:22:45 +0000 (UTC) Received: from localhost.localdomain (unknown [210.32.144.184]) by mail-app2 (Coremail) with SMTP id by_KCgDX3+faljxfrTj_AQ--.23396S4; Wed, 19 Aug 2020 11:05:03 +0800 (CST) From: Dinghao Liu To: dinghao.liu@zju.edu.cn, kjlu@umn.edu Subject: [PATCH] video: backlight: sky81452-backlight: Fix refcount imbalance on error Date: Wed, 19 Aug 2020 11:04:56 +0800 Message-Id: <20200819030456.7054-1-dinghao.liu@zju.edu.cn> X-Mailer: git-send-email 2.17.1 X-CM-TRANSID: by_KCgDX3+faljxfrTj_AQ--.23396S4 X-Coremail-Antispam: 1UD129KBjvdXoW7XrWrCF1rZr1fZFWDWw1kuFg_yoWfWrXEkw nFqr93WFsrtr40yrsrJF1furWFkFWDZFn8ZFy0vFySya4DC3ZxWFyvvr4DWF13J3WrtF13 Aw1akr4fuw40kjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUb-kFc2x0x2IEx4CE42xK8VAvwI8IcIk0rVWrJVCq3wAFIxvE14AK wVWUJVWUGwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK021l84ACjcxK6xIIjxv20x vE14v26w1j6s0DM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26r4UJVWxJr1l84ACjcxK6I8E 87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_GcCE3s1le2I262IYc4CY6c 8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_Jr0_ Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwI xGrwACjI8F5VA0II8E6IAqYI8I648v4I1lFIxGxcIEc7CjxVA2Y2ka0xkIwI1lc2xSY4AK 67AK6r48MxAIw28IcxkI7VAKI48JMxAIw28IcVCjz48v1sIEY20_GFWkJr1UJwCFx2IqxV CFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r10 6r1rMI8E67AF67kF1VAFwI0_Jw0_GFylIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxV WUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Gr0_Cr1lIxAIcVCF04k26cxKx2IYs7xG 6rW3Jr0E3s1lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267AKxVW8JV W8JrUvcSsGvfC2KfnxnUUI43ZEXa7VUjQBMtUUUUU== X-CM-SenderInfo: qrrzjiaqtzq6lmxovvfxof0/1tbiAgcLBlZdtPihowAasX X-Mailman-Approved-At: Wed, 19 Aug 2020 06:56:51 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Daniel Thompson , Bartlomiej Zolnierkiewicz , Jingoo Han , Bryan Wu , Gyungoh Yoo , linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Lee Jones MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" When of_property_read_u32_array() returns an error code, a pairing refcount decrement is needed to keep np's refcount balanced. Fixes: f705806c9f355 ("backlight: Add support Skyworks SKY81452 backlight driver") Signed-off-by: Dinghao Liu Reviewed-by: Daniel Thompson --- drivers/video/backlight/sky81452-backlight.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452-backlight.c index 0ce181585008..8268ac43d54f 100644 --- a/drivers/video/backlight/sky81452-backlight.c +++ b/drivers/video/backlight/sky81452-backlight.c @@ -217,6 +217,7 @@ static struct sky81452_bl_platform_data *sky81452_bl_parse_dt( num_entry); if (ret < 0) { dev_err(dev, "led-sources node is invalid.\n"); + of_node_put(np); return ERR_PTR(-EINVAL); }