diff options
Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib_vlan.c')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_vlan.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c index 891c5b40018a..fa4dfcee2644 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c @@ -67,6 +67,12 @@ int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv, ASSERT_RTNL(); + /* + * Racing with unregister of the parent must be prevented by the + * caller. + */ + WARN_ON(ppriv->dev->reg_state != NETREG_REGISTERED); + priv->parent = ppriv->dev; priv->pkey = pkey; priv->child_type = type; |