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From: wangyunjian <wangyunjian@huawei.com>
To: <dev@dpdk.org>
Cc: <jia.guo@intel.com>, <jerry.lilijun@huawei.com>,
	<xudingke@huawei.com>, Yunjian Wang <wangyunjian@huawei.com>,
	<stable@dpdk.org>
Subject: [dpdk-dev]  [PATCH v3 2/2] eal: return error code when failure
Date: Thu, 2 Jul 2020 19:47:19 +0800	[thread overview]
Message-ID: <1593690439-26908-1-git-send-email-wangyunjian@huawei.com> (raw)
In-Reply-To: <a2a8a6832e6621e578c6f779221d00cbd620b3b6.1591186247.git.wangyunjian@huawei.com>

From: Yunjian Wang <wangyunjian@huawei.com>

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 <wangyunjian@huawei.com>
Acked-by: Jeff Guo <jia.guo@intel.com>
---
 lib/librte_eal/common/eal_common_dev.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/lib/librte_eal/common/eal_common_dev.c b/lib/librte_eal/common/eal_common_dev.c
index 4cfdb80..f8df8d4 100644
--- a/lib/librte_eal/common/eal_common_dev.c
+++ b/lib/librte_eal/common/eal_common_dev.c
@@ -531,9 +531,15 @@ 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



  parent reply	other threads:[~2020-07-02 11:47 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-03 12:33 [dpdk-dev] [PATCH 0/3] fixes for device event wangyunjian
2020-06-03 12:54 ` wangyunjian
2020-06-03 12:54 ` [dpdk-dev] [PATCH 1/3] eal: fix memory leak when removing event_cb wangyunjian
2020-06-03 12:55 ` [dpdk-dev] [PATCH 2/3] eal: fix remove incorrect event_cb wangyunjian
2020-06-12  5:56   ` Jeff Guo
2020-06-30 11:29     ` wangyunjian
2020-06-30 11:56   ` [dpdk-dev] [PATCH v2] eal: fix memory leak when removing event_cb wangyunjian
2020-07-02  9:28     ` Jeff Guo
2020-07-02 10:53       ` wangyunjian
2020-07-02 11:46   ` [dpdk-dev] [PATCH v3 0/2] fixes for device event wangyunjian
2020-07-02 11:47   ` [dpdk-dev] [PATCH v3 1/2] eal: fix memory leak when removing event_cb wangyunjian
2020-07-03  6:04     ` Jeff Guo
2020-07-03  7:00       ` wangyunjian
2020-07-03  7:23     ` [dpdk-dev] [dpdk-stable] " David Marchand
2020-07-03  7:52       ` wangyunjian
2020-07-03  8:01         ` David Marchand
2020-07-02 11:47   ` wangyunjian [this message]
2020-06-03 12:55 ` [dpdk-dev] [PATCH 3/3] eal: return error code when failure wangyunjian
2020-07-02  9:18   ` Jeff Guo
2020-07-02 10:43     ` wangyunjian

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