[Qemu-devel] [PULL v3 06/15] vhost-user: disconnect on start failure

["Michael S. Tsirkin" <mst@redhat.com>]

From: Marc-André Lureau <marcandre.lureau@redhat.com>

If the backend failed to start (for example feature negociation failed),
do not exit, but disconnect the char device instead. Slightly more
robust for reconnect case.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Victor Kaplansky <victork@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 net/vhost-user.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/vhost-user.c b/net/vhost-user.c
index 4a7fd5f..41ddb4b 100644
--- a/net/vhost-user.c
+++ b/net/vhost-user.c
@@ -202,7 +202,8 @@ static void net_vhost_user_event(void *opaque, int event)
         s->watch = qemu_chr_fe_add_watch(s->chr, G_IO_HUP,
                                          net_vhost_user_watch, s);
         if (vhost_user_start(queues, ncs) < 0) {
-            exit(1);
+            qemu_chr_disconnect(s->chr);
+            return;
         }
         qmp_set_link(name, true, &err);
         break;
-- 
MST