eal/linux: fix handling of error events from epoll

[ upstream commit e3e9c87 ]

The "rev->epdata.event" assigned to "events.epdata.event" directly, which
was wrong in case of epoll events. It should be set to the "evs.events".

Fixes: 9efe9c6 ("eal/linux: add epoll wrappers")

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Acked-by: Harman Kalra <hkalra@marvell.com>

lib/librte_eal/linux/eal/eal_interrupts.c

@@ -1205,7 +1205,7 @@ eal_epoll_process_event(struct epoll_event *evs, unsigned int n,
 		events[count].status        = RTE_EPOLL_VALID;
 		events[count].fd            = rev->fd;
 		events[count].epfd          = rev->epfd;
-		events[count].epdata.event  = rev->epdata.event;
+		events[count].epdata.event  = evs[i].events;
 		events[count].epdata.data   = rev->epdata.data;
 		if (rev->epdata.cb_fun)
 			rev->epdata.cb_fun(rev->fd,