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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 805F2C433E1 for ; Wed, 19 Aug 2020 02:05:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 690012067C for ; Wed, 19 Aug 2020 02:05:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726985AbgHSCFt (ORCPT ); Tue, 18 Aug 2020 22:05:49 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:53802 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726469AbgHSCFq (ORCPT ); Tue, 18 Aug 2020 22:05:46 -0400 Received: from DGGEMS402-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id A92CA3F694DDC345A29A; Wed, 19 Aug 2020 10:05:44 +0800 (CST) Received: from DESKTOP-C3MD9UG.china.huawei.com (10.174.177.253) by DGGEMS402-HUB.china.huawei.com (10.3.19.202) with Microsoft SMTP Server id 14.3.487.0; Wed, 19 Aug 2020 10:05:33 +0800 From: Zhen Lei To: Oliver O'Halloran , Dan Williams , Vishal Verma , "Dave Jiang" , Ira Weiny , Markus Elfring , linux-nvdimm , linux-kernel CC: Zhen Lei Subject: [PATCH v2 2/4] libnvdimm: add sanity check for provider_name in of_pmem_region_probe() Date: Wed, 19 Aug 2020 10:05:01 +0800 Message-ID: <20200819020503.3079-3-thunder.leizhen@huawei.com> X-Mailer: git-send-email 2.26.0.windows.1 In-Reply-To: <20200819020503.3079-1-thunder.leizhen@huawei.com> References: <20200819020503.3079-1-thunder.leizhen@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.174.177.253] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org kstrdup() may return NULL because of no memory, check it. Fixes: 49bddc73d15c ("libnvdimm/of_pmem: Provide a unique name for bus provider") Signed-off-by: Zhen Lei --- drivers/nvdimm/of_pmem.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/nvdimm/of_pmem.c b/drivers/nvdimm/of_pmem.c index 1292ffca7b2ecc0..13c4c274ca6ea88 100644 --- a/drivers/nvdimm/of_pmem.c +++ b/drivers/nvdimm/of_pmem.c @@ -31,6 +31,11 @@ static int of_pmem_region_probe(struct platform_device *pdev) return -ENOMEM; priv->bus_desc.provider_name = kstrdup(pdev->name, GFP_KERNEL); + if (!priv->bus_desc.provider_name) { + kfree(priv); + return -ENOMEM; + } + priv->bus_desc.module = THIS_MODULE; priv->bus_desc.of_node = np; -- 1.8.3