Received: by 2002:a05:6a10:f347:0:0:0:0 with SMTP id d7csp1112pxu; Tue, 1 Dec 2020 04:52:06 -0800 (PST) X-Google-Smtp-Source: ABdhPJwg9C9SqBVuN8x3/1ailKK4Jhfa4IbXHrysdcwZcd03r7++MQqP9OWNk5xxmedrabcXI7Qe X-Received: by 2002:a05:6402:21c7:: with SMTP id bi7mr2980597edb.54.1606827125846; Tue, 01 Dec 2020 04:52:05 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1606827125; cv=none; d=google.com; s=arc-20160816; b=05ZmKv/KlzXdIZRtZqoOwy+UYwH0kgySXtfG+oMYSsbdN9IW2gWd4skQYAwX6+YIoc V6zGhFeOD35/xL+0PEWcGRMWbNi7TxuvLyUsfjTzFjVsK8S3OR3QE7C21jx2WT+osaSV ecMqXpQerDUJdplFbEh5Bo4UI7qBHNUugagHyyNGx4unKOJPlAinA68IKr3tvw9Yp4bA W/+c0vn/HeEy3DLhzubgDqVFG302ZnT/+AnVAOITqKyY5baj56KXBqXiIBRwWI4293xY k8p+z+d0y4+xLvdOVwpkhqwSvBPy7suR7CGI58nw31kesMohZJ0bzL4ByRusflNVFc5U UhwA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=J1mmjcBmxCB1AeRJpY4zI+w4wTBzT2GYRrBLsoCrq/c=; b=TiKPLN94gcUxtU5t33rK5SgFdLNMtuFMxaX/UmQfn6t//q3xixgRqc4SH8QI4SePqt c9tLhfay8AtEx59dQmbz+vGuYEfdA6OjaRWJpQZ1vXKspGXZEebNKMGlqjuR/BDHDpTA aEePRkSQ8h9py1qG/lX1QhoUzI21icEmecsb7G3VIqsbjo+g7dt4fInnZrTgUfLEVqzd DdPRFBh1646wjNbqUaoQ0YCc5wZJQxderT99f9lO9Yz63hzXCfhVtLurqxZLBaNmVpu0 KeRu0tUQdXUV/JWCqHraIeGdGb53xTgpyD1xAulN445tKPMYrrouaSF5R4FtVcDhJ5ZU KJ/Q== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id f10si1050318edx.567.2020.12.01.04.51.40; Tue, 01 Dec 2020 04:52:05 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390208AbgLAMru (ORCPT + 99 others); Tue, 1 Dec 2020 07:47:50 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:8545 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728714AbgLAMru (ORCPT ); Tue, 1 Dec 2020 07:47:50 -0500 Received: from DGGEMS410-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4ClhgP6VQszhl3X; Tue, 1 Dec 2020 20:46:41 +0800 (CST) Received: from localhost.localdomain.localdomain (10.175.113.25) by DGGEMS410-HUB.china.huawei.com (10.3.19.210) with Microsoft SMTP Server id 14.3.487.0; Tue, 1 Dec 2020 20:47:01 +0800 From: Qinglang Miao To: Sandy Huang , =?UTF-8?q?Heiko=20St=C3=BCbner?= , David Airlie , Daniel Vetter CC: , , , , Qinglang Miao Subject: [PATCH 0/3] drm/rockchip: fix reference leak when pm_runtime_get_sync fails Date: Tue, 1 Dec 2020 20:54:56 +0800 Message-ID: <20201201125459.142178-1-miaoqinglang@huawei.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.113.25] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org pm_runtime_get_sync will increment the PM reference count even failed. Forgetting to putting operation will result in a reference leak here. Replace it with pm_runtime_resume_and_get to keep usage counter balanced. BTW, pm_runtime_resume_and_get is introduced in v5.10-rc5 as dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to dealwith usage counter") Qinglang Miao (3): drm/rockchip: cdn-dp: fix reference leak when pm_runtime_get_sync fails drm/rockchip: vop: fix reference leak when pm_runtime_get_sync fails drm/rockchip: lvds: fix reference leak when pm_runtime_get_sync fails drivers/gpu/drm/rockchip/cdn-dp-core.c | 2 +- drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 4 ++-- drivers/gpu/drm/rockchip/rockchip_lvds.c | 4 ++-- 3 files changed, 5 insertions(+), 5 deletions(-) -- 2.23.0