From patchwork Tue Nov 1 06:30:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yang Yingliang X-Patchwork-Id: 621026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6AF97C433FE for ; Tue, 1 Nov 2022 06:32:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229838AbiKAGcC (ORCPT ); Tue, 1 Nov 2022 02:32:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50146 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229827AbiKAGcB (ORCPT ); Tue, 1 Nov 2022 02:32:01 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ED9E316595 for ; Mon, 31 Oct 2022 23:32:00 -0700 (PDT) Received: from dggpemm500021.china.huawei.com (unknown [172.30.72.55]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4N1gCd3vwDzHvPs; Tue, 1 Nov 2022 14:31:41 +0800 (CST) Received: from dggpemm500007.china.huawei.com (7.185.36.183) by dggpemm500021.china.huawei.com (7.185.36.109) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Tue, 1 Nov 2022 14:31:51 +0800 Received: from huawei.com (10.175.103.91) by dggpemm500007.china.huawei.com (7.185.36.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Tue, 1 Nov 2022 14:31:51 +0800 From: Yang Yingliang To: CC: , Subject: [PATCH 0/9] mmc: fix return value check of mmc_add_host() Date: Tue, 1 Nov 2022 14:30:14 +0800 Message-ID: <20221101063023.1664968-1-yangyingliang@huawei.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [10.175.103.91] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpemm500007.china.huawei.com (7.185.36.183) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org mmc_add_host() may return error, but it was ignored in some drivers, if we ignore it, the memory that allocated in mmc_alloc_host() will be leaked and it will lead a kernel crash because of deleting not added device in the remove path. So fix this by checking the return value and calling mmc_free_host() in error path. Yang Yingliang (9): mmc: alcor: fix return value check of mmc_add_host() mmc: moxart: fix return value check of mmc_add_host() mmc: mxcmmc: fix return value check of mmc_add_host() mmc: pxamci: fix return value check of mmc_add_host() mmc: rtsx_pci: fix return value check of mmc_add_host() mmc: rtsx_usb_sdmmc: fix return value check of mmc_add_host() mmc: toshsd: fix return value check of mmc_add_host() mmc: vub300: fix return value check of mmc_add_host() mmc: wmt-sdmmc: fix return value check of mmc_add_host() drivers/mmc/host/alcor.c | 5 ++++- drivers/mmc/host/moxart-mmc.c | 4 +++- drivers/mmc/host/mxcmmc.c | 4 +++- drivers/mmc/host/pxamci.c | 7 ++++++- drivers/mmc/host/rtsx_pci_sdmmc.c | 9 ++++++++- drivers/mmc/host/rtsx_usb_sdmmc.c | 11 ++++++++++- drivers/mmc/host/toshsd.c | 6 +++++- drivers/mmc/host/vub300.c | 11 ++++++++--- drivers/mmc/host/wmt-sdmmc.c | 6 +++++- 9 files changed, 52 insertions(+), 11 deletions(-)