From mboxrd@z Thu Jan 1 00:00:00 1970 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,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 391E6C4332F for ; Sat, 11 Sep 2021 13:17:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 214A161152 for ; Sat, 11 Sep 2021 13:17:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237164AbhIKNS6 (ORCPT ); Sat, 11 Sep 2021 09:18:58 -0400 Received: from mail.kernel.org ([198.145.29.99]:37788 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236290AbhIKNQr (ORCPT ); Sat, 11 Sep 2021 09:16:47 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 410DD6126A; Sat, 11 Sep 2021 13:13:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1631366005; bh=6n8ZrpCjHK/0owdGbK700/HKwHqdWGyYWY9zC/fI8/M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WCCFWjDUbYTul1nNoatdMa3AXtZKMYjI3SIBPi5fHdS8o87qQilnD9Y19HDkB+I9+ AwJs/EDbolc0yR7V90oiGCb432SQXeUjHiUxH0wSR1o6QV8stV75alGPvQ49sjfpAw Z19HANu78SJfwnuYekQmXglvMWNQqI/EWd40lysfJB5y772GRR/4JtXDCW5EP/GQVA Y0O4THPTH+EXi0H/b7PaBV/sJSjQ3QNmiUYmdTVWjDkzu+jHASHevKur39f8DE9vnF pIg5AvoN6+FgoihpIth4h2otKaD6MwesEMNVqAlE4KKzJsLTnStF39P63LLqSXuzqK Oq6wItJ9hPk1A== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Dinghao Liu , Lorenzo Pieralisi , Geert Uytterhoeven , Sasha Levin , linux-pci@vger.kernel.org, linux-renesas-soc@vger.kernel.org Subject: [PATCH AUTOSEL 5.10 09/25] PCI: rcar: Fix runtime PM imbalance in rcar_pcie_ep_probe() Date: Sat, 11 Sep 2021 09:12:56 -0400 Message-Id: <20210911131312.285225-9-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210911131312.285225-1-sashal@kernel.org> References: <20210911131312.285225-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Dinghao Liu [ Upstream commit 1e29cd9983eba1b596bc07f94d81d728007f8a25 ] pm_runtime_get_sync() will increase the runtime PM counter even it returns an error. Thus a pairing decrement is needed to prevent refcount leak. Fix this by replacing this API with pm_runtime_resume_and_get(), which will not change the runtime PM counter on error. Link: https://lore.kernel.org/r/20210408072402.15069-1-dinghao.liu@zju.edu.cn Signed-off-by: Dinghao Liu Signed-off-by: Lorenzo Pieralisi Reviewed-by: Geert Uytterhoeven Signed-off-by: Sasha Levin --- drivers/pci/controller/pcie-rcar-ep.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/pci/controller/pcie-rcar-ep.c b/drivers/pci/controller/pcie-rcar-ep.c index b4a288e24aaf..c91d85b15129 100644 --- a/drivers/pci/controller/pcie-rcar-ep.c +++ b/drivers/pci/controller/pcie-rcar-ep.c @@ -492,9 +492,9 @@ static int rcar_pcie_ep_probe(struct platform_device *pdev) pcie->dev = dev; pm_runtime_enable(dev); - err = pm_runtime_get_sync(dev); + err = pm_runtime_resume_and_get(dev); if (err < 0) { - dev_err(dev, "pm_runtime_get_sync failed\n"); + dev_err(dev, "pm_runtime_resume_and_get failed\n"); goto err_pm_disable; } -- 2.30.2