From patchwork Tue Oct 22 09:29:17 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yuan Can X-Patchwork-Id: 13845421 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D8D231990AE for ; Tue, 22 Oct 2024 09:34:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.188 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729589646; cv=none; b=nuaXpilOo4x6H13PMRHmlT2PO6tLIHvp2Fh8PJaUEHMGoJfE062ONVn7iBYzh2n272z1mi/sO1n+FeZbSaJ3tk3U4Jpq6GZIb4dGBugrLlzc8zJWAoluiPwVHC/GSH5Xj6q+TZsPldHAELgkOKcS8XRv/xoKbXQe8Lyth7xKNO0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729589646; c=relaxed/simple; bh=7AqTzBsJ6bw2+kz0jjggBOT4mjLvsxcbnYTDm5cpBQc=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=cWTeqkViK8304E7XLc4r4xMiHM7le/LcrIriJ2hPR09qPjv29kfORFRnPAagJpsFJsN45G4P74Tyq6y/Y4ktaXVDx6XhJw2+EjiVKsGT2OjkXYj//wuVyFioolmGDX3NjbwfubmdZRyf22rSFD07Liw6zq1c2Egv/5skMLoteBg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.188 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.163.48]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4XXn4L5QSLzfdQ9 for ; Tue, 22 Oct 2024 17:31:30 +0800 (CST) Received: from dggpeml500024.china.huawei.com (unknown [7.185.36.10]) by mail.maildlp.com (Postfix) with ESMTPS id 9A4761800A0 for ; Tue, 22 Oct 2024 17:34:00 +0800 (CST) Received: from huawei.com (10.175.112.208) by dggpeml500024.china.huawei.com (7.185.36.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Tue, 22 Oct 2024 17:34:00 +0800 From: Yuan Can To: , , CC: Subject: [PATCH] PCI: cpqphp: Fix error handling in cpqhpc_init() Date: Tue, 22 Oct 2024 17:29:17 +0800 Message-ID: <20241022092917.120226-1-yuancan@huawei.com> X-Mailer: git-send-email 2.17.1 Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To dggpeml500024.china.huawei.com (7.185.36.10) The cpqhpc_init() returns without checking the retval from pci_register_driver(). If the pci_register_driver() failed, the module failed to install, leaving the cpqhp debugfs not unregistered. Fixes: 9f3f4681291f ("[PATCH] PCI Hotplug: fix up the sysfs file in the compaq pci hotplug driver") Signed-off-by: Yuan Can --- drivers/pci/hotplug/cpqphp_core.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c index 47a3ed16159a..933392fab8a3 100644 --- a/drivers/pci/hotplug/cpqphp_core.c +++ b/drivers/pci/hotplug/cpqphp_core.c @@ -1390,6 +1390,10 @@ static int __init cpqhpc_init(void) cpqhp_initialize_debugfs(); result = pci_register_driver(&cpqhpc_driver); dbg("pci_register_driver = %d\n", result); + + if (result) + cpqhp_shutdown_debugfs(); + return result; }