[{"id":3678568,"web_url":"http://patchwork.ozlabs.org/comment/3678568/","msgid":"<68c9f7fe-8bbd-49fc-b9f5-407e62dbba63@web.de>","list_archive_url":null,"date":"2026-04-17T08:02:11","subject":"Re: [PATCH] PCI: eswin: Fix resource leak on dw_pcie_host_init()\n failure","submitter":{"id":76334,"url":"http://patchwork.ozlabs.org/api/people/76334/","name":"Markus Elfring","email":"Markus.Elfring@web.de"},"content":"> When dw_pcie_host_init() fails, the code jumps to err_init which\n> only calls pm_runtime_put() but skips the clean up of port resources.\n\nThus use an other label?\n\nSee also:\n* https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v7.0#n94\n* https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/stable-kernel-rules.rst?h=v7.0#n34\n\nRegards,\nMarkus","headers":{"Return-Path":"\n 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IKsPShdD/HEXaHe9SV9Y4wzmRNOwJVWXQif2uAiAy8TPlKwCoWrdK6eOJ6exXgIzRYIKzhMLt\n 3WkaDGNKdl+Dkl3Va8GK3E7B7/e90iAcfywVj8qM7pcVjO6yLUecSFAcUn3ooXKkaW+1TmtWM\n eq1VpW0cezegkEaWdOtSn2ObScuZ+MqzwN6nAIOjsh+MGGdXzQVUDnlGB4ISBTgHpY+Ba/6BO\n W9iWiiUeeacI8XZDm/PFrs8g=="}},{"id":3678585,"web_url":"http://patchwork.ozlabs.org/comment/3678585/","msgid":"<63f0d797.55eb.19d9aa167da.Coremail.zhangsenchuan@eswincomputing.com>","list_archive_url":null,"date":"2026-04-17T08:49:22","subject":"Re: [PATCH] PCI: eswin: Fix resource leak on dw_pcie_host_init()\n failure","submitter":{"id":90868,"url":"http://patchwork.ozlabs.org/api/people/90868/","name":"zhangsenchuan","email":"zhangsenchuan@eswincomputing.com"},"content":"> Subject: [PATCH] PCI: eswin: Fix resource leak on dw_pcie_host_init() failure\n> \n> When dw_pcie_host_init() fails, the code jumps to err_init which\n> only calls pm_runtime_put() but skips the clean up of port resources.\n> \n> Fixes: b593c26d081a (\"PCI: eswin: Add ESWIN PCIe Root Complex driver\")\n> Signed-off-by: Felix Gu \n> ---\n> drivers/pci/controller/dwc/pcie-eswin.c | 3 +--\n> 1 file changed, 1 insertion(+), 2 deletions(-)\n> \n> diff --git a/drivers/pci/controller/dwc/pcie-eswin.c b/drivers/pci/controller/dwc/pcie-eswin.c\n> index 2845832b3824..0185b55e09e3 100644\n> --- a/drivers/pci/controller/dwc/pcie-eswin.c\n> +++ b/drivers/pci/controller/dwc/pcie-eswin.c\n> @@ -348,7 +348,7 @@ static int eswin_pcie_probe(struct platform_device *pdev)\n> \tret = dw_pcie_host_init(&pci->pp);\n> \tif (ret) {\n> \t\tdev_err(dev, \"Failed to init host\\n\");\n> -\t\tgoto err_init;\n> +\t\tgoto err_pm_runtime_put;\n> \t}\n> \n> \treturn 0;\n> @@ -358,7 +358,6 @@ static int eswin_pcie_probe(struct platform_device *pdev)\n> \t\treset_control_put(port->perst);\n> \t\tlist_del(&port->list);\n> \t}\n> -err_init:\n> \tpm_runtime_put(dev);\n> \n> \treturn ret;\n\nThanks for your reminder.\nIn some cases, resources are indeed unable to be released. For instance, if the \nclk_bulk_prepare_enable function fails to execute, or if some functions \nin dw_pcie_host_init fail to execute, and the port resources are not released.\n\nKind regards,\nSenchuan\n> \n> ---\n> base-commit: 936c21068d7ade00325e40d82bfd2f3f29d9f659\n> change-id: 20260416-eswin-4d09df4e8f48\n>","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-pci@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; helo=sea.lore.kernel.org;\n envelope-from=linux-pci+bounces-52703-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)","smtp.subspace.kernel.org;\n arc=none smtp.client-ip=207.46.229.174","smtp.subspace.kernel.org;\n dmarc=none (p=none dis=none) header.from=eswincomputing.com","smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=eswincomputing.com"],"Received":["from sea.lore.kernel.org (sea.lore.kernel.org\n [IPv6:2600:3c0a:e001:db::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fxpb70D1Zz1yDF\n\tfor ; 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charset=UTF-8","Precedence":"bulk","X-Mailing-List":"linux-pci@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","Message-ID":"\n <63f0d797.55eb.19d9aa167da.Coremail.zhangsenchuan@eswincomputing.com>","X-Coremail-Locale":"en_US","X-CM-TRANSID":"TQJkCgA3TJ8S9OFpvmgSAA--.2402W","X-CM-SenderInfo":"x2kd0wpvhquxxxdqqvxvzl0uprps33xlqjhudrp/1tbiAQEABmnhD\n\txkcjwAAsL","X-Coremail-Antispam":"1Ur529EdanIXcx71UUUUU7IcSsGvfJ3iIAIbVAYjsxI4VWxJw\n\tCS07vEb4IE77IF4wCS07vE1I0E4x80FVAKz4kxMIAIbVAFxVCaYxvI4VCIwcAKzIAtYxBI\n\tdaVFxhVjvjDU="}},{"id":3678607,"web_url":"http://patchwork.ozlabs.org/comment/3678607/","msgid":"","list_archive_url":null,"date":"2026-04-17T09:34:57","subject":"Re: [PATCH] PCI: eswin: Fix resource leak on dw_pcie_host_init()\n failure","submitter":{"id":78905,"url":"http://patchwork.ozlabs.org/api/people/78905/","name":"Manivannan Sadhasivam","email":"mani@kernel.org"},"content":"On Thu, Apr 16, 2026 at 08:30:20PM +0800, Felix Gu wrote:\n> When dw_pcie_host_init() fails, the code jumps to err_init which\n> only calls pm_runtime_put() but skips the clean up of port resources.\n> \n> Fixes: b593c26d081a (\"PCI: eswin: Add ESWIN PCIe Root Complex driver\")\n> Signed-off-by: Felix Gu \n> ---\n> drivers/pci/controller/dwc/pcie-eswin.c | 3 +--\n> 1 file changed, 1 insertion(+), 2 deletions(-)\n> \n> diff --git a/drivers/pci/controller/dwc/pcie-eswin.c b/drivers/pci/controller/dwc/pcie-eswin.c\n> index 2845832b3824..0185b55e09e3 100644\n> --- a/drivers/pci/controller/dwc/pcie-eswin.c\n> +++ b/drivers/pci/controller/dwc/pcie-eswin.c\n> @@ -348,7 +348,7 @@ static int eswin_pcie_probe(struct platform_device *pdev)\n> \tret = dw_pcie_host_init(&pci->pp);\n> \tif (ret) {\n> \t\tdev_err(dev, \"Failed to init host\\n\");\n> -\t\tgoto err_init;\n> +\t\tgoto err_pm_runtime_put;\n> \t}\n> \n> \treturn 0;\n> @@ -358,7 +358,6 @@ static int eswin_pcie_probe(struct platform_device *pdev)\n> \t\treset_control_put(port->perst);\n> \t\tlist_del(&port->list);\n> \t}\n> -err_init:\n> \tpm_runtime_put(dev);\n\nError path is really messed up. On pm_runtime_get_sync() failure, it should\ngo to 'err_free_ports' and on dw_pcie_host_init() failure, it should go to\nerr_pm_runtime_put.\n\n- Mani","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-pci@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=ERphNZZO;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c04:e001:36c::12fc:5321; helo=tor.lore.kernel.org;\n envelope-from=linux-pci+bounces-52707-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)","smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=\"ERphNZZO\"","smtp.subspace.kernel.org;\n arc=none smtp.client-ip=10.30.226.201"],"Received":["from tor.lore.kernel.org (tor.lore.kernel.org\n [IPv6:2600:3c04:e001:36c::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fxqVm1yCsz1yDF\n\tfor ; Fri, 17 Apr 2026 19:35:28 +1000 (AEST)","from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby tor.lore.kernel.org (Postfix) with ESMTP id 0619C308C194\n\tfor ; Fri, 17 Apr 2026 09:35:08 +0000 (UTC)","from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id D657C379EEA;\n\tFri, 17 Apr 2026 09:35:05 +0000 (UTC)","from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org\n [10.30.226.201])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id B0B90219EB;\n\tFri, 17 Apr 2026 09:35:05 +0000 (UTC)","by smtp.kernel.org (Postfix) with ESMTPSA id EE5AFC2BCB4;\n\tFri, 17 Apr 2026 09:35:01 +0000 (UTC)"],"ARC-Seal":"i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1776418505; cv=none;\n b=THwE/pWXyIgkk+uAPJioBPcGRtky0/61QIHs6kL2g3LEKoU3pXMfe1H1gY8s+lK87a0RTk0BSV4BqA8GePV5bIv219QUgAorGpsTkM14LleVgWzi/O5VZx60QjDdAlrE3LRSBBsPgxS8a0CiOuUmPIXsoGhVaaazQosGhbbemqA=","ARC-Message-Signature":"i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1776418505; c=relaxed/simple;\n\tbh=a9gbty5WFhq3JGklAorMAB3mAtTv1TV9SZwNDXwQnx4=;\n\th=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version:\n\t Content-Type:Content-Disposition:In-Reply-To;\n b=Ihy6b8ouhQ9niAhgE02YUC9RswPp46J8TAf0pZK/v0eE7e78tvksPl+01cfL9TeLLagiz6wZQ5fxZJtO4CSAG383pdWXfOSeHuBTo0LE6VesxxBtQ8w3w/sgc1Gcn6oQM3CUjMRMzbwIeAQcwqtoTFiW/HDprFjtaAA5PSeXIHc=","ARC-Authentication-Results":"i=1; smtp.subspace.kernel.org;\n dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=ERphNZZO; arc=none smtp.client-ip=10.30.226.201","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1776418505;\n\tbh=a9gbty5WFhq3JGklAorMAB3mAtTv1TV9SZwNDXwQnx4=;\n\th=Date:From:To:Cc:Subject:References:In-Reply-To:From;\n\tb=ERphNZZOxs/V1W7iuK2axQct/Ynkw63V4JCVpEptUtQo9DROAGZrBVYDaIaOJBEkt\n\t RUaG+sEYQpkwjrAtqpKkFFqS05rKf6hk9nSlafs5JRkGuxg19TDkhZqDFYWwOzNQvR\n\t +TkLXxTDCFpJxoXdjN7Nm8tKi6NFsI4TZDyO4XJYcxcqyuX9bCtyT4cgojYhV41xhE\n\t Pf+g2CIaaAccz2qtAVA+1ONzyUmeGZ5+xFojx3GXCmYRByWHGRKNkIf9aDKawC0rJM\n\t IkzlDv3LUIOR/Msc8/astuThSDCQdn1tyIKZcjzxbw7RYCvEhRtY3U9y9PhUIT5rvN\n\t S7yKKsg+VoAYA==","Date":"Fri, 17 Apr 2026 15:04:57 +0530","From":"Manivannan Sadhasivam ","To":"Felix Gu ","Cc":"Senchuan Zhang ,\n Lorenzo Pieralisi , Krzysztof =?utf-8?q?Wilczy?=\n\t=?utf-8?q?=C5=84ski?= ,\n Rob Herring , Bjorn Helgaas ,\n Yanghui Ou ,\n Yu Ning , linux-pci@vger.kernel.org,\n linux-kernel@vger.kernel.org","Subject":"Re: [PATCH] PCI: eswin: Fix resource leak on dw_pcie_host_init()\n failure","Message-ID":"","References":"<20260416-eswin-v1-1-a4991725b5ca@gmail.com>","Precedence":"bulk","X-Mailing-List":"linux-pci@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","Content-Type":"text/plain; charset=utf-8","Content-Disposition":"inline","Content-Transfer-Encoding":"8bit","In-Reply-To":"<20260416-eswin-v1-1-a4991725b5ca@gmail.com>"}},{"id":3678642,"web_url":"http://patchwork.ozlabs.org/comment/3678642/","msgid":"","list_archive_url":null,"date":"2026-04-17T10:14:39","subject":"Re: [PATCH] PCI: eswin: Fix resource leak on dw_pcie_host_init()\n failure","submitter":{"id":92491,"url":"http://patchwork.ozlabs.org/api/people/92491/","name":"Felix Gu","email":"ustc.gu@gmail.com"},"content":"On Fri, Apr 17, 2026 at 5:35 PM Manivannan Sadhasivam wrote:\n>\n> Error path is really messed up. On pm_runtime_get_sync() failure, it should\n> go to 'err_free_ports' and on dw_pcie_host_init() failure, it should go to\n> err_pm_runtime_put.\n>\n> - Mani\n>\n> --\n> மணிவண்ணன் சதாசிவம்\nHi Mani,\nFor pm_runtime_get_sync() failure, it still needs a pm_runtime_put().\nSo it doesn't need two labels here.\n\nBest regards,\nFelix Gu","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-pci@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=FrkN8BQ+;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; helo=sea.lore.kernel.org;\n envelope-from=linux-pci+bounces-52710-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)","smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com\n header.b=\"FrkN8BQ+\"","smtp.subspace.kernel.org;\n arc=pass smtp.client-ip=209.85.210.174","smtp.subspace.kernel.org;\n dmarc=pass (p=none dis=none) header.from=gmail.com","smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=gmail.com"],"Received":["from sea.lore.kernel.org (sea.lore.kernel.org\n [IPv6:2600:3c0a:e001:db::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fxrT05DcMz1yD3\n\tfor ; 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Fri, 17 Apr 2026\n 03:14:50 -0700 (PDT)","Precedence":"bulk","X-Mailing-List":"linux-pci@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","References":"<20260416-eswin-v1-1-a4991725b5ca@gmail.com>\n ","In-Reply-To":"","From":"Felix Gu ","Date":"Fri, 17 Apr 2026 18:14:39 +0800","X-Gm-Features":"AQROBzDlDLlBdaIlCsEpEtFegpe7kI1oCn4ClUBEX9xj_7PdK3gRdUSJdHmwlPA","Message-ID":"\n ","Subject":"Re: [PATCH] PCI: eswin: Fix resource leak on dw_pcie_host_init()\n failure","To":"Manivannan Sadhasivam ","Cc":"Senchuan Zhang ,\n Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy?=\n\t=?utf-8?q?=C5=84ski?= ,\n Rob Herring , Bjorn Helgaas ,\n Yanghui Ou ,\n Yu Ning , linux-pci@vger.kernel.org,\n linux-kernel@vger.kernel.org","Content-Type":"text/plain; charset=\"UTF-8\"","Content-Transfer-Encoding":"quoted-printable"}}]