From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id B0F58A04A2; Wed, 3 Jun 2020 14:55:27 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id E84641D546; Wed, 3 Jun 2020 14:55:25 +0200 (CEST) Received: from huawei.com (szxga04-in.huawei.com [45.249.212.190]) by dpdk.org (Postfix) with ESMTP id ADBE31D536; Wed, 3 Jun 2020 14:55:23 +0200 (CEST) Received: from DGGEMS407-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id AB8CB499995F7C18C301; Wed, 3 Jun 2020 20:55:21 +0800 (CST) Received: from localhost (10.173.251.152) by DGGEMS407-HUB.china.huawei.com (10.3.19.207) with Microsoft SMTP Server id 14.3.487.0; Wed, 3 Jun 2020 20:55:15 +0800 From: wangyunjian To: CC: , , , Yunjian Wang , Date: Wed, 3 Jun 2020 20:55:14 +0800 Message-ID: <65433c2a9efdb47b1c9dba63d9bd1cb160e08097.1591186247.git.wangyunjian@huawei.com> X-Mailer: git-send-email 1.9.5.msysgit.1 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.173.251.152] X-CFilter-Loop: Reflected Subject: [dpdk-dev] [PATCH 3/3] eal: return error code when failure X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Yunjian Wang Fix return value, using -EAGAIN instead of 0 when the callback is busy and using -ENOENT instead of 0 when the callback is not found. Fixes: a753e53d517b ("eal: add device event monitor framework") Cc: stable@dpdk.org Signed-off-by: Yunjian Wang --- lib/librte_eal/common/eal_common_dev.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/lib/librte_eal/common/eal_common_dev.c b/lib/librte_eal/common/eal_common_dev.c index 6b465bc..5f5e333 100644 --- a/lib/librte_eal/common/eal_common_dev.c +++ b/lib/librte_eal/common/eal_common_dev.c @@ -536,9 +536,14 @@ static int cmp_dev_name(const struct rte_device *dev, const void *_name) free(event_cb); ret++; } else { - continue; + ret = -EAGAIN; + break; } } + /* this callback is not be registered */ + if (ret == 0) + ret = -ENOENT; + rte_spinlock_unlock(&dev_event_lock); return ret; } -- 1.8.3.1