app/eventdev: switch sequence number to dynamic mbuf field

[dpdk.git] / lib / librte_vhost / vhost.c

diff --git a/lib/librte_vhost/vhost.c b/lib/librte_vhost/vhost.c
index 3235658..6068c38 100644 (file)
--- a/lib/librte_vhost/vhost.c
+++ b/lib/librte_vhost/vhost.c
@@ -1633,10 +1633,15 @@ int rte_vhost_async_channel_unregister(int vid, uint16_t queue_id)
                return ret;
 
        ret = 0;
-       rte_spinlock_lock(&vq->access_lock);
 
        if (!vq->async_registered)
-               goto out;
+               return ret;
+
+       if (!rte_spinlock_trylock(&vq->access_lock)) {
+               VHOST_LOG_CONFIG(ERR, "Failed to unregister async channel. "
+                       "virt queue busy.\n");
+               return -1;
+       }
 
        if (vq->async_pkts_inflight_n) {
                VHOST_LOG_CONFIG(ERR, "Failed to unregister async channel. "