From: wangyunjian <wangyunjian@huawei.com>
To: <dev@dpdk.org>
Cc: <david.marchand@redhat.com>, <jia.guo@intel.com>,
<jerinj@marvell.com>, <jerry.lilijun@huawei.com>,
<xudingke@huawei.com>, Yunjian Wang <wangyunjian@huawei.com>,
<stable@dpdk.org>
Subject: [dpdk-stable] [dpdk-dev] [PATCH v5 3/3] eal: fix a wrong returned value when callback exists
Date: Wed, 21 Oct 2020 19:19:49 +0800 [thread overview]
Message-ID: <7ec6b12bf0f9fcdb2306dec72390a853abdf2f56.1603207676.git.wangyunjian@huawei.com> (raw)
In-Reply-To: <cover.1603207676.git.wangyunjian@huawei.com>
From: Yunjian Wang <wangyunjian@huawei.com>
We should return an error value, when the callback is already exist.
Fixes: a753e53d517b ("eal: add device event monitor framework")
Cc: stable@dpdk.org
Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Suggested-by: David Marchand <david.marchand@6wind.com>
---
lib/librte_eal/common/eal_common_dev.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/lib/librte_eal/common/eal_common_dev.c b/lib/librte_eal/common/eal_common_dev.c
index d990bfd20d..8a3bd3100a 100644
--- a/lib/librte_eal/common/eal_common_dev.c
+++ b/lib/librte_eal/common/eal_common_dev.c
@@ -480,7 +480,9 @@ rte_dev_event_callback_register(const char *device_name,
RTE_LOG(ERR, EAL,
"The callback is already exist, no need "
"to register again.\n");
+ event_cb = NULL;
ret = -EEXIST;
+ goto error;
}
rte_spinlock_unlock(&dev_event_lock);
--
2.23.0
next prev parent reply other threads:[~2020-10-21 11:20 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1603207676.git.wangyunjian@huawei.com>
2020-10-21 11:19 ` [dpdk-stable] [dpdk-dev] [PATCH v5 1/3] eal: fix memory leak when removing event_cb wangyunjian
2020-10-21 11:19 ` [dpdk-stable] [dpdk-dev] [PATCH v5 2/3] eal: return error code when failure wangyunjian
2020-10-22 12:51 ` David Marchand
2020-10-23 9:05 ` wangyunjian
2020-10-21 11:19 ` wangyunjian [this message]
2020-10-22 12:55 ` [dpdk-stable] [dpdk-dev] [PATCH v5 3/3] eal: fix a wrong returned value when callback exists David Marchand
2020-10-23 9:05 ` wangyunjian
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