eal/linux: fix epoll timeout

Function rte_epoll_wait should return when underlying call
to epoll_wait times out.

Signed-off-by: Robert Sanford <rsanford@akamai.com>
Acked-by: Cunming Liang <cunming.liang@intel.com>

diff --git a/lib/librte_eal/linuxapp/eal/eal_interrupts.c b/lib/librte_eal/linuxapp/eal/eal_interrupts.c
index 66e1fe3..078318c 100644 (file)
--- a/lib/librte_eal/linuxapp/eal/eal_interrupts.c
+++ b/lib/librte_eal/linuxapp/eal/eal_interrupts.c
@@ -1002,6 +1002,9 @@ rte_epoll_wait(int epfd, struct rte_epoll_event *events,
                                strerror(errno));
                        rc = -1;
                        break;
+               } else {
+                       /* rc == 0, epoll_wait timed out */
+                       break;
                }
        }