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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 E07C2C43331 for ; Sun, 10 Nov 2019 02:41:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B405121D7B for ; Sun, 10 Nov 2019 02:41:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573353713; bh=E6NZP6ynkriCsftnvRMiOdDW/QfXQMjf7r0Z3bIB+9g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=YIi3axsCpvohEvfxEa+aNwu4TLKTNnkBwgZwvdTUSyUr2J7sN4yxJ9bGE1ey3+5jZ xP4bvSpk593htI8ItQ9rnnUt7PYO1f9XIWbGu9RA8P56l6Bbqs8Eh8fXF4T6yGGmXJ ZtS7N+MD+e+IIRrwg+LvvTNSmKAhW1rrpKQP/SfA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727632AbfKJClw (ORCPT ); Sat, 9 Nov 2019 21:41:52 -0500 Received: from mail.kernel.org ([198.145.29.99]:36714 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727611AbfKJClu (ORCPT ); Sat, 9 Nov 2019 21:41:50 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E2E4A20650; Sun, 10 Nov 2019 02:41:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573353709; bh=E6NZP6ynkriCsftnvRMiOdDW/QfXQMjf7r0Z3bIB+9g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lwcQ2ZmnyJep36azdb+xgyGzOSYgjkGOnrff6NIGU/QHnQFHXU81AAHAWe/rCsneM oQ0NkfaMCvnFOXyVAkDRIW7qYSAUbcvITQ25Fuhkbwfb43hmH981ANIswhegZ+AjBL HLCgYVoCK+ykD7Vvo5z09nMSz5LhJZXRTzMeOpk0= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Jian Shen , Peng Li , Salil Mehta , "David S . Miller" , Sasha Levin , netdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 048/191] net: hns3: Clear client pointer when initialize client failed or unintialize finished Date: Sat, 9 Nov 2019 21:37:50 -0500 Message-Id: <20191110024013.29782-48-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191110024013.29782-1-sashal@kernel.org> References: <20191110024013.29782-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Jian Shen [ Upstream commit 49dd80541c75c2f21c28bbbdd958e993b55bf97b ] If initialize client failed or finish uninitializing client, we should clear the client pointer. It may cause unexpected result when use uninitialized client. Meanwhile, we also should check whether client exist when uninitialize it. Fixes: 46a3df9f9718 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support") Signed-off-by: Jian Shen Signed-off-by: Peng Li Signed-off-by: Salil Mehta Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- .../hisilicon/hns3/hns3pf/hclge_main.c | 25 +++++++++----- .../hisilicon/hns3/hns3vf/hclgevf_main.c | 33 ++++++++++++++----- 2 files changed, 41 insertions(+), 17 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index 6907280d316fb..671144d1f14ac 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -5467,13 +5467,13 @@ static int hclge_init_client_instance(struct hnae3_client *client, vport->nic.client = client; ret = client->ops->init_instance(&vport->nic); if (ret) - return ret; + goto clear_nic; ret = hclge_init_instance_hw(hdev); if (ret) { client->ops->uninit_instance(&vport->nic, 0); - return ret; + goto clear_nic; } if (hdev->roce_client && @@ -5482,11 +5482,11 @@ static int hclge_init_client_instance(struct hnae3_client *client, ret = hclge_init_roce_base_info(vport); if (ret) - return ret; + goto clear_roce; ret = rc->ops->init_instance(&vport->roce); if (ret) - return ret; + goto clear_roce; } break; @@ -5496,7 +5496,7 @@ static int hclge_init_client_instance(struct hnae3_client *client, ret = client->ops->init_instance(&vport->nic); if (ret) - return ret; + goto clear_nic; break; case HNAE3_CLIENT_ROCE: @@ -5508,16 +5508,25 @@ static int hclge_init_client_instance(struct hnae3_client *client, if (hdev->roce_client && hdev->nic_client) { ret = hclge_init_roce_base_info(vport); if (ret) - return ret; + goto clear_roce; ret = client->ops->init_instance(&vport->roce); if (ret) - return ret; + goto clear_roce; } } } return 0; + +clear_nic: + hdev->nic_client = NULL; + vport->nic.client = NULL; + return ret; +clear_roce: + hdev->roce_client = NULL; + vport->roce.client = NULL; + return ret; } static void hclge_uninit_client_instance(struct hnae3_client *client, @@ -5537,7 +5546,7 @@ static void hclge_uninit_client_instance(struct hnae3_client *client, } if (client->type == HNAE3_CLIENT_ROCE) return; - if (client->ops->uninit_instance) { + if (hdev->nic_client && client->ops->uninit_instance) { hclge_uninit_instance_hw(hdev); client->ops->uninit_instance(&vport->nic, 0); hdev->nic_client = NULL; diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c index 5570fb5dc2eb4..83fcdd326de71 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c @@ -1629,17 +1629,17 @@ static int hclgevf_init_client_instance(struct hnae3_client *client, ret = client->ops->init_instance(&hdev->nic); if (ret) - return ret; + goto clear_nic; if (hdev->roce_client && hnae3_dev_roce_supported(hdev)) { struct hnae3_client *rc = hdev->roce_client; ret = hclgevf_init_roce_base_info(hdev); if (ret) - return ret; + goto clear_roce; ret = rc->ops->init_instance(&hdev->roce); if (ret) - return ret; + goto clear_roce; } break; case HNAE3_CLIENT_UNIC: @@ -1648,7 +1648,7 @@ static int hclgevf_init_client_instance(struct hnae3_client *client, ret = client->ops->init_instance(&hdev->nic); if (ret) - return ret; + goto clear_nic; break; case HNAE3_CLIENT_ROCE: if (hnae3_dev_roce_supported(hdev)) { @@ -1659,15 +1659,24 @@ static int hclgevf_init_client_instance(struct hnae3_client *client, if (hdev->roce_client && hdev->nic_client) { ret = hclgevf_init_roce_base_info(hdev); if (ret) - return ret; + goto clear_roce; ret = client->ops->init_instance(&hdev->roce); if (ret) - return ret; + goto clear_roce; } } return 0; + +clear_nic: + hdev->nic_client = NULL; + hdev->nic.client = NULL; + return ret; +clear_roce: + hdev->roce_client = NULL; + hdev->roce.client = NULL; + return ret; } static void hclgevf_uninit_client_instance(struct hnae3_client *client, @@ -1676,13 +1685,19 @@ static void hclgevf_uninit_client_instance(struct hnae3_client *client, struct hclgevf_dev *hdev = ae_dev->priv; /* un-init roce, if it exists */ - if (hdev->roce_client) + if (hdev->roce_client) { hdev->roce_client->ops->uninit_instance(&hdev->roce, 0); + hdev->roce_client = NULL; + hdev->roce.client = NULL; + } /* un-init nic/unic, if this was not called by roce client */ - if ((client->ops->uninit_instance) && - (client->type != HNAE3_CLIENT_ROCE)) + if (client->ops->uninit_instance && hdev->nic_client && + client->type != HNAE3_CLIENT_ROCE) { client->ops->uninit_instance(&hdev->nic, 0); + hdev->nic_client = NULL; + hdev->nic.client = NULL; + } } static int hclgevf_pci_init(struct hclgevf_dev *hdev) -- 2.20.1