From patchwork Tue Dec 1 09:29:24 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: 'Qinglang Miao X-Patchwork-Id: 335394 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=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, 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 80B10C8301E for ; Tue, 1 Dec 2020 09:22:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4F82B20674 for ; Tue, 1 Dec 2020 09:22:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390697AbgLAJW2 (ORCPT ); Tue, 1 Dec 2020 04:22:28 -0500 Received: from szxga04-in.huawei.com ([45.249.212.190]:8222 "EHLO szxga04-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390682AbgLAJWY (ORCPT ); Tue, 1 Dec 2020 04:22:24 -0500 Received: from DGGEMS414-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4Clc6741BSzkj6p; Tue, 1 Dec 2020 17:21:03 +0800 (CST) Received: from localhost.localdomain.localdomain (10.175.113.25) by DGGEMS414-HUB.china.huawei.com (10.3.19.214) with Microsoft SMTP Server id 14.3.487.0; Tue, 1 Dec 2020 17:21:26 +0800 From: Qinglang Miao To: Michal Simek , Dong Aisheng , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Oleksij Rempel , Vignesh R , "Aaro Koskinen" , Tony Lindgren , Orson Zhai , Baolin Wang , Chunyan Zhang , Pierre-Yves MORDRET , Maxime Coquelin , Alexandre Torgue CC: , , , Qinglang Miao Subject: [PATCH 0/8] i2c: fix reference leak when pm_runtime_get_sync fails Date: Tue, 1 Dec 2020 17:29:24 +0800 Message-ID: <20201201092924.112461-1-miaoqinglang@huawei.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-i2c@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 (8): i2c: cadence: fix reference leak when pm_runtime_get_sync fails i2c: img-scb: fix reference leak when pm_runtime_get_sync fails i2c: imx-lpi2c: fix reference leak when pm_runtime_get_sync fails i2c: imx: fix reference leak when pm_runtime_get_sync fails i2c: omap: fix reference leak when pm_runtime_get_sync fails i2c: sprd: fix reference leak when pm_runtime_get_sync fails i2c: stm32f7: fix reference leak when pm_runtime_get_sync fails i2c: xiic: fix reference leak when pm_runtime_get_sync fails drivers/i2c/busses/i2c-cadence.c | 4 ++-- drivers/i2c/busses/i2c-img-scb.c | 4 ++-- drivers/i2c/busses/i2c-imx-lpi2c.c | 2 +- drivers/i2c/busses/i2c-imx.c | 4 ++-- drivers/i2c/busses/i2c-omap.c | 8 ++++---- drivers/i2c/busses/i2c-sprd.c | 4 ++-- drivers/i2c/busses/i2c-stm32f7.c | 12 ++++++------ drivers/i2c/busses/i2c-xiic.c | 4 ++-- 8 files changed, 21 insertions(+), 21 deletions(-)