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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,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 BF532C7618F for ; Wed, 24 Jul 2019 20:04:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8FD45214AF for ; Wed, 24 Jul 2019 20:04:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563998685; bh=y5aMZuNFOBLZnnkx+88Nli9ZhgKfyb91ZWUVryMTH8U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=MuC+yNIc8jObr3udq3FyJok24bhu08Kc9lAtBxp4UzYmDejy7tKKSCstN9PMfIBpk EX93ftGgyPmb5cvG77OstAgkfCSBiGkYWtqpxMun3prXcmpz5OJ82ReuCN8h9+xuNC KeFPcntXSi8cWpcR+N5ruVsY2tkdaevFier+1VnQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404692AbfGXUEo (ORCPT ); Wed, 24 Jul 2019 16:04:44 -0400 Received: from mail.kernel.org ([198.145.29.99]:55966 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2392585AbfGXUEn (ORCPT ); Wed, 24 Jul 2019 16:04:43 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BA06E214AF; Wed, 24 Jul 2019 20:04:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563998682; bh=y5aMZuNFOBLZnnkx+88Nli9ZhgKfyb91ZWUVryMTH8U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nZe+9/yMNMEXV9zTso0c10zdBSJxi3VTEuIQucOggPrGYm5uNGP/GH0NsIlWCHGl9 cvZYmOfE32quslyN+8aDQi7VRuK6aTo7OwUK82Tdh3SdI11PIBN0LOtX0MFTSKC5os fGyxmsfn9uq0m4vHPCW8rrj9OrpKXMlkW1/WYHE8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Weihang Li , Peng Li , Huazhong Tan , "David S. Miller" , Sasha Levin Subject: [PATCH 4.19 041/271] net: hns3: set ops to null when unregister ad_dev Date: Wed, 24 Jul 2019 21:18:30 +0200 Message-Id: <20190724191658.702135535@linuxfoundation.org> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190724191655.268628197@linuxfoundation.org> References: <20190724191655.268628197@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org [ Upstream commit 594a81b39525f0a17e92c2e0b167ae1400650380 ] The hclge/hclgevf and hns3 module can be unloaded independently, when hclge/hclgevf unloaded firstly, the ops of ae_dev should be set to NULL, otherwise it will cause an use-after-free problem. Fixes: 38caee9d3ee8 ("net: hns3: Add support of the HNAE3 framework") Signed-off-by: Weihang Li Signed-off-by: Peng Li Signed-off-by: Huazhong Tan Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/hisilicon/hns3/hnae3.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.c b/drivers/net/ethernet/hisilicon/hns3/hnae3.c index fff5be8078ac..0594a6c3dccd 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.c +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.c @@ -229,6 +229,7 @@ void hnae3_unregister_ae_algo(struct hnae3_ae_algo *ae_algo) ae_algo->ops->uninit_ae_dev(ae_dev); hnae3_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 0); + ae_dev->ops = NULL; } list_del(&ae_algo->node); @@ -316,6 +317,7 @@ void hnae3_unregister_ae_dev(struct hnae3_ae_dev *ae_dev) ae_algo->ops->uninit_ae_dev(ae_dev); hnae3_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 0); + ae_dev->ops = NULL; } list_del(&ae_dev->node); -- 2.20.1