From patchwork Wed May 20 08:22:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dinghao Liu X-Patchwork-Id: 11559829 X-Patchwork-Delegate: lorenzo.pieralisi@arm.com 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 B25A214C0 for ; Wed, 20 May 2020 09:04:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A48592075F for ; Wed, 20 May 2020 09:04:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726224AbgETJEg (ORCPT ); Wed, 20 May 2020 05:04:36 -0400 Received: from spam.zju.edu.cn ([61.164.42.155]:48134 "EHLO zju.edu.cn" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726525AbgETJEg (ORCPT ); Wed, 20 May 2020 05:04:36 -0400 X-Greylist: delayed 2507 seconds by postgrey-1.27 at vger.kernel.org; Wed, 20 May 2020 05:04:35 EDT Received: from localhost.localdomain (unknown [222.205.77.158]) by mail-app3 (Coremail) with SMTP id cC_KCgB3f0PG6MRe6UTfAA--.12230S4; Wed, 20 May 2020 16:22:35 +0800 (CST) From: Dinghao Liu To: dinghao.liu@zju.edu.cn, kjlu@umn.edu Cc: Marek Vasut , Yoshihiro Shimoda , Lorenzo Pieralisi , Rob Herring , Bjorn Helgaas , linux-pci@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] PCI: rcar: fix runtime pm imbalance on error Date: Wed, 20 May 2020 16:22:28 +0800 Message-Id: <20200520082228.26881-1-dinghao.liu@zju.edu.cn> X-Mailer: git-send-email 2.17.1 X-CM-TRANSID: cC_KCgB3f0PG6MRe6UTfAA--.12230S4 X-Coremail-Antispam: 1UD129KBjvdXoWrKrW5ZF15Jr17CrWrKFy7trb_yoWfWrb_u3 WY9Fs7Crs5Gr9Ikry2ya13ZF9YvasIq3Wqg3WrtF1ayaySvws8Xr97XFZ8Zrs5Cr45AF1q yr1q9F1xurWUujkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUb-kFc2x0x2IEx4CE42xK8VAvwI8IcIk0rVWrJVCq3wAFIxvE14AK wVWUJVWUGwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK021l84ACjcxK6xIIjxv20x vE14v26w1j6s0DM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26F4UJVW0owA2z4x0Y4vEx4A2 jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxVW0oVCq3wAS0I0E0xvYzxvE52 x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7IYx2IY67AKxVWUGVWU XwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0Y48IcxkI7VAKI4 8JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwACI402YVCY1x02628vn2kIc2xKxwCY02Avz4vE 14v_GFyl42xK82IYc2Ij64vIr41l42xK82IY6x8ErcxFaVAv8VW8uw4UJr1UMxC20s026x CaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_ JrWlx4CE17CEb7AF67AKxVWUtVW8ZwCIc40Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r 1j6r1xMIIF0xvE2Ix0cI8IcVCY1x0267AKxVW8JVWxJwCI42IY6xAIw20EY4v20xvaj40_ Wr1j6rW3Jr1lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267AKxVW8JV W8JrUvcSsGvfC2KfnxnUUI43ZEXa7VUbqQ6JUUUUU== X-CM-SenderInfo: qrrzjiaqtzq6lmxovvfxof0/ Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org pm_runtime_get_sync() increments the runtime PM usage counter even it returns an error code. Thus a pairing decrement is needed on the error handling path to keep the counter balanced. Signed-off-by: Dinghao Liu --- drivers/pci/controller/pcie-rcar.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/pci/controller/pcie-rcar.c b/drivers/pci/controller/pcie-rcar.c index 759c6542c5c8..a9de65438051 100644 --- a/drivers/pci/controller/pcie-rcar.c +++ b/drivers/pci/controller/pcie-rcar.c @@ -1207,9 +1207,8 @@ static int rcar_pcie_probe(struct platform_device *pdev) irq_dispose_mapping(pcie->msi.irq1); err_pm_put: - pm_runtime_put(dev); - err_pm_disable: + pm_runtime_put(dev); pm_runtime_disable(dev); pci_free_resource_list(&pcie->resources);