[dpdk-dev] [PATCH] eventdev: fix eventdev start return value
Pavan Nikhilesh
pbhagavatula at caviumnetworks.com
Wed Jun 7 12:35:19 CEST 2017
From: Pavan Nikhilesh Bhagavatula <pbhagavatula at caviumnetworks.com>
If eventdev has already started it should return -EBUSY instead of 0
when rte_event_dev_start is called.
Fixes: 4f0804bbdfb9 ("eventdev: implement the northbound APIs")
Signed-off-by: Pavan Nikhilesh <pbhagavatula at caviumnetworks.com>
---
lib/librte_eventdev/rte_eventdev.c | 2 +-
lib/librte_eventdev/rte_eventdev.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/lib/librte_eventdev/rte_eventdev.c b/lib/librte_eventdev/rte_eventdev.c
index 20afc3f..61bb13f 100644
--- a/lib/librte_eventdev/rte_eventdev.c
+++ b/lib/librte_eventdev/rte_eventdev.c
@@ -1023,7 +1023,7 @@ rte_event_dev_start(uint8_t dev_id)
if (dev->data->dev_started != 0) {
RTE_EDEV_LOG_ERR("Device with dev_id=%" PRIu8 "already started",
dev_id);
- return 0;
+ return -EBUSY;
}
diag = (*dev->dev_ops->dev_start)(dev);
diff --git a/lib/librte_eventdev/rte_eventdev.h b/lib/librte_eventdev/rte_eventdev.h
index a248fe9..c469b66 100644
--- a/lib/librte_eventdev/rte_eventdev.h
+++ b/lib/librte_eventdev/rte_eventdev.h
@@ -759,6 +759,7 @@ rte_event_port_count(uint8_t dev_id);
* - 0: Success, device started.
* - -ESTALE : Not all ports of the device are configured
* - -ENOLINK: Not all queues are linked, which could lead to deadlock.
+ * - -EBUSY : Device has already been started.
*/
int
rte_event_dev_start(uint8_t dev_id);
--
2.7.4
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