[Qemu-devel] [PATCH] vhost-user: return if no net clients found

[Chen Hanxiao]

From: Chen Hanxiao <address@hidden>

If we can't find a suitable net client, return directly.
Or we will got a segmentation fault.

Signed-off-by: Chen Hanxiao <address@hidden>
---
 net/vhost-user.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/vhost-user.c b/net/vhost-user.c
index b0595f8..fb96db7 100644
--- a/net/vhost-user.c
+++ b/net/vhost-user.c
@@ -210,6 +210,9 @@ static void net_vhost_user_event(void *opaque, int event)
                                           MAX_QUEUE_NUM);
     assert(queues < MAX_QUEUE_NUM);
 
+    if (queues < 1)
+        return;
+
     s = DO_UPCAST(VhostUserState, nc, ncs[0]);
     trace_vhost_user_event(s->chr->label, event);
     switch (event) {
-- 
1.8.3.1