From: Tonghao Zhang <xiangxia.m....@gmail.com>

When first call the 'rte_vhost_driver_start', the
fdset_event_dispatch thread should be created successfully.
Because the vhost uses it to poll socket events for vhost
server or clients. Without it, for example, vhost will not
get the connection event.

This patch returns err code directly when created not successful.

Signed-off-by: Tonghao Zhang <xiangxia.m....@gmail.com>
---
 lib/librte_vhost/socket.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/librte_vhost/socket.c b/lib/librte_vhost/socket.c
index 83befdc..8ca01df 100644
--- a/lib/librte_vhost/socket.c
+++ b/lib/librte_vhost/socket.c
@@ -831,9 +831,11 @@ struct vhost_device_ops const *
        if (fdset_tid == 0) {
                int ret = pthread_create(&fdset_tid, NULL, fdset_event_dispatch,
                                     &vhost_user.fdset);
-               if (ret != 0)
+               if (ret != 0) {
                        RTE_LOG(ERR, VHOST_CONFIG,
                                "failed to create fdset handling thread");
+                       return ret;
+               }
        }
 
        if (vsocket->is_server)
-- 
1.8.3.1

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