eventdev: fix memory leakage on thread creation failure

[ upstream commit f6681ab ]

This patch fixes the issue that epoll_events memory is not released
after the intr thread created fail.

Fixes: 3810ae4 ("eventdev: add interrupt driven queues to Rx adapter")

Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>

lib/librte_eventdev/rte_event_eth_rx_adapter.c

@@ -1288,6 +1288,7 @@ rxa_create_intr_thread(struct rte_event_eth_rx_adapter *rx_adapter)
 		return 0;
 
 	RTE_EDEV_LOG_ERR("Failed to create interrupt thread err = %d\n", err);
+	rte_free(rx_adapter->epoll_events);
 error:
 	rte_ring_free(rx_adapter->intr_ring);
 	rx_adapter->intr_ring = NULL;