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 648D741DB5; Thu, 2 Mar 2023 08:55:28 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 3F9C242D12; Thu, 2 Mar 2023 08:54:55 +0100 (CET) Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by mails.dpdk.org (Postfix) with ESMTP id 52F2741181 for ; Thu, 2 Mar 2023 08:54:46 +0100 (CET) Received: from dggpeml500024.china.huawei.com (unknown [172.30.72.54]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4PS3GF1ZD3zSkNy; Thu, 2 Mar 2023 15:51:49 +0800 (CST) Received: from localhost.localdomain (10.50.163.32) by dggpeml500024.china.huawei.com (7.185.36.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Thu, 2 Mar 2023 15:54:44 +0800 From: Chengwen Feng To: , CC: Subject: [PATCH 8/9] dma/skeleton: fix segment fault when parse devargs Date: Thu, 2 Mar 2023 07:48:24 +0000 Message-ID: <20230302074825.31947-9-fengchengwen@huawei.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230302074825.31947-1-fengchengwen@huawei.com> References: <20230302074825.31947-1-fengchengwen@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.50.163.32] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To dggpeml500024.china.huawei.com (7.185.36.10) 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 The rte_kvargs_process() was used to parse KV pairs, it also supports to parse 'only keys' (e.g. socket_id) type. And the callback function parameter 'value' is NULL when parsed 'only keys'. This patch fixes segment fault when parse input args with 'only keys' (e.g. lcore). Fixes: 05d5fc66a269 ("dma/skeleton: introduce skeleton driver") Cc: stable@dpdk.org Signed-off-by: Chengwen Feng --- drivers/dma/skeleton/skeleton_dmadev.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/dma/skeleton/skeleton_dmadev.c b/drivers/dma/skeleton/skeleton_dmadev.c index 9b6da655fd..daf35eccce 100644 --- a/drivers/dma/skeleton/skeleton_dmadev.c +++ b/drivers/dma/skeleton/skeleton_dmadev.c @@ -515,9 +515,15 @@ skeldma_parse_lcore(const char *key __rte_unused, const char *value, void *opaque) { - int lcore_id = atoi(value); + int lcore_id; + + if (value == NULL || opaque == NULL) + return -EINVAL; + + lcore_id = atoi(value); if (lcore_id >= 0 && lcore_id < RTE_MAX_LCORE) *(int *)opaque = lcore_id; + return 0; } -- 2.17.1