From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 3B1BA432F3; Fri, 10 Nov 2023 11:04:42 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 55F0442E23; Fri, 10 Nov 2023 11:04:11 +0100 (CET) Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by mails.dpdk.org (Postfix) with ESMTP id 9492E42DE8 for ; Fri, 10 Nov 2023 11:04:03 +0100 (CET) Received: from dggpeml100024.china.huawei.com (unknown [172.30.72.54]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4SRZCk1bXFzWhHZ; Fri, 10 Nov 2023 18:03:46 +0800 (CST) Received: from localhost.localdomain (10.50.165.33) by dggpeml100024.china.huawei.com (7.185.36.115) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.31; Fri, 10 Nov 2023 18:04:01 +0800 From: Chengwen Feng To: , , Bruce Richardson , Kevin Laatz , Conor Walsh CC: Subject: [PATCH v2 05/16] dma/idxd: verify strdup return value Date: Fri, 10 Nov 2023 10:01:06 +0000 Message-ID: <20231110100117.8350-6-fengchengwen@huawei.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20231110100117.8350-1-fengchengwen@huawei.com> References: <20231110100117.8350-1-fengchengwen@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.50.165.33] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To dggpeml100024.china.huawei.com (7.185.36.115) X-CFilter-Loop: Reflected X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Add verify strdup return value logic. Fixes: e888bb1278c6 ("dma/idxd: add bus device probing") Cc: stable@dpdk.org Signed-off-by: Chengwen Feng --- drivers/dma/idxd/idxd_bus.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/dma/idxd/idxd_bus.c b/drivers/dma/idxd/idxd_bus.c index 3b2d4c2b65..ba8076715d 100644 --- a/drivers/dma/idxd/idxd_bus.c +++ b/drivers/dma/idxd/idxd_bus.c @@ -261,9 +261,15 @@ static int is_for_this_process_use(struct rte_dsa_device *dev, const char *name) { char *runtime_dir = strdup(rte_eal_get_runtime_dir()); - char *prefix = basename(runtime_dir); - int prefixlen = strlen(prefix); int retval = 0; + int prefixlen; + char *prefix; + + if (runtime_dir == NULL) + return retval; + + prefix = basename(runtime_dir); + prefixlen = strlen(prefix); if (strncmp(name, "dpdk_", 5) == 0) retval = 1; -- 2.17.1