From patchwork Mon Jul 12 06:08:21 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 474258 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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, 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 C71D8C07E9C for ; Mon, 12 Jul 2021 06:44:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B0F42610D0 for ; Mon, 12 Jul 2021 06:44:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236582AbhGLGrj (ORCPT ); Mon, 12 Jul 2021 02:47:39 -0400 Received: from mail.kernel.org ([198.145.29.99]:41760 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238089AbhGLGqx (ORCPT ); Mon, 12 Jul 2021 02:46:53 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 225A261165; Mon, 12 Jul 2021 06:42:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626072170; bh=br3pXyvGPs1GFamn1zJyi1MEcHGeylciNRI8Y/GIw58=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=C7wRlTFLART8sIiPjwjhIjtFOeDQAH1B73UefAl3c+iT0+7x411PMNPx6cwT3Px+a F2OGHs356wxlecYol5B/Jxv8NA2d2Ju4d7ZHDdF+UYmYIcePfCiSW39o47Fbpf+oMs GhVd1tWdgigiPHVOSWHImcNYJcw+LSD93mNOlpYQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hulk Robot , Yang Yingliang , Kalle Valo , Sasha Levin Subject: [PATCH 5.10 341/593] ath10k: add missing error return code in ath10k_pci_probe() Date: Mon, 12 Jul 2021 08:08:21 +0200 Message-Id: <20210712060923.534994216@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210712060843.180606720@linuxfoundation.org> References: <20210712060843.180606720@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Yang Yingliang [ Upstream commit e2783e2f39ba99178dedfc1646d5cc0979d1bab3 ] When chip_id is not supported, the resources will be freed on path err_unsupported, these resources will also be freed when calling ath10k_pci_remove(), it will cause double free, so return -ENODEV when it doesn't support the device with wrong chip_id. Fixes: c0c378f9907c ("ath10k: remove target soc ps code") Fixes: 7505f7c3ec1d ("ath10k: create a chip revision whitelist") Fixes: f8914a14623a ("ath10k: restore QCA9880-AR1A (v1) detection") Reported-by: Hulk Robot Signed-off-by: Yang Yingliang Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20210522105822.1091848-3-yangyingliang@huawei.com Signed-off-by: Sasha Levin --- drivers/net/wireless/ath/ath10k/pci.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c index 55f483d22b6d..86f52bcb3e4d 100644 --- a/drivers/net/wireless/ath/ath10k/pci.c +++ b/drivers/net/wireless/ath/ath10k/pci.c @@ -3684,8 +3684,10 @@ static int ath10k_pci_probe(struct pci_dev *pdev, ath10k_pci_soc_read32(ar, SOC_CHIP_ID_ADDRESS); if (bus_params.chip_id != 0xffffffff) { if (!ath10k_pci_chip_is_supported(pdev->device, - bus_params.chip_id)) + bus_params.chip_id)) { + ret = -ENODEV; goto err_unsupported; + } } } @@ -3696,11 +3698,15 @@ static int ath10k_pci_probe(struct pci_dev *pdev, } bus_params.chip_id = ath10k_pci_soc_read32(ar, SOC_CHIP_ID_ADDRESS); - if (bus_params.chip_id == 0xffffffff) + if (bus_params.chip_id == 0xffffffff) { + ret = -ENODEV; goto err_unsupported; + } - if (!ath10k_pci_chip_is_supported(pdev->device, bus_params.chip_id)) + if (!ath10k_pci_chip_is_supported(pdev->device, bus_params.chip_id)) { + ret = -ENODEV; goto err_unsupported; + } ret = ath10k_core_register(ar, &bus_params); if (ret) {