From patchwork Tue Jun 1 10:01:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tong Tiangen X-Patchwork-Id: 453007 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, 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 AE2F0C4708F for ; Tue, 1 Jun 2021 09:52:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 89710610FC for ; Tue, 1 Jun 2021 09:52:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232704AbhFAJyC (ORCPT ); Tue, 1 Jun 2021 05:54:02 -0400 Received: from szxga01-in.huawei.com ([45.249.212.187]:6109 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230282AbhFAJx5 (ORCPT ); Tue, 1 Jun 2021 05:53:57 -0400 Received: from dggemv703-chm.china.huawei.com (unknown [172.30.72.55]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4FvS6y47mtzYpXD; Tue, 1 Jun 2021 17:49:30 +0800 (CST) Received: from dggpemm000001.china.huawei.com (7.185.36.245) by dggemv703-chm.china.huawei.com (10.3.19.46) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Tue, 1 Jun 2021 17:52:14 +0800 Received: from localhost.localdomain.localdomain (10.175.113.25) by dggpemm000001.china.huawei.com (7.185.36.245) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Tue, 1 Jun 2021 17:52:13 +0800 From: Tong Tiangen To: Arend van Spriel , Franky Lin , Hante Meuleman , Chi-hsien Lin , Wright Feng , Chung-hsien Hsu , Kalle Valo , "David S. Miller" , Jakub Kicinski CC: , , , , , Tong Tiangen Subject: [PATCH -next] brcmfmac: Fix a double-free in brcmf_sdio_bus_reset Date: Tue, 1 Jun 2021 18:01:28 +0800 Message-ID: <20210601100128.69561-1-tongtiangen@huawei.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpemm000001.china.huawei.com (7.185.36.245) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org brcmf_sdiod_remove has been called inside brcmf_sdiod_probe when fails, so there's no need to call another one. Otherwise, sdiodev->freezer would be double freed. Fixes: 7836102a750a ("brcmfmac: reset SDIO bus on a firmware crash") Signed-off-by: Tong Tiangen --- drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c index 16ed325795a8..3a1c98a046f0 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c @@ -4162,7 +4162,6 @@ static int brcmf_sdio_bus_reset(struct device *dev) if (ret) { brcmf_err("Failed to probe after sdio device reset: ret %d\n", ret); - brcmf_sdiod_remove(sdiodev); } return ret;