tunneling: Internal dev vport can be NULL.

[sliver-openvswitch.git] / datapath / vport-internal_dev.c

diff --git a/datapath/vport-internal_dev.c b/datapath/vport-internal_dev.c
index 514d00c..84b90b5 100644 (file)
--- a/datapath/vport-internal_dev.c
+++ b/datapath/vport-internal_dev.c
@@ -329,6 +329,11 @@ int is_internal_vport(const struct vport *vport)
 
 struct vport *internal_dev_get_vport(struct net_device *netdev)
 {
-       struct internal_dev *internal_dev = internal_dev_priv(netdev);
+       struct internal_dev *internal_dev;
+
+       if (!is_internal_dev(netdev))
+               return NULL;
+       
+       internal_dev = internal_dev_priv(netdev);
        return rcu_dereference(internal_dev->attached_vport);
 }