From: Juan Quintela <quintela@redhat.com>

Two things, at this point:

* n->primary_device_id has to be set, otherwise
  virtio_net_find_primary don't work.  So we have a leak here.

* it has to be exactly the same that prim_dev->id because what
  qdev_find_recursive() does is just compare this two values.

So remove the unneeded assignment and leaky bits.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20201118083748.1328-14-quintela@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 hw/net/virtio-net.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index 6e5a56a230..70fa372c08 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -854,9 +854,7 @@ static DeviceState *virtio_connect_failover_devices(VirtIONet *n, Error **errp)
     Error *err = NULL;
 
     prim_dev = virtio_net_find_primary(n, &err);
-    if (prim_dev) {
-        n->primary_device_id = g_strdup(prim_dev->id);
-    } else {
+    if (!prim_dev) {
         error_propagate(errp, err);
     }
 
-- 
MST