Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...

[~andy/linux] / drivers / infiniband / ulp / ipoib / ipoib_multicast.c

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
index 25874fc680c99d74a0402b29000d6569e0a7a9b7..8763c1ea5eb45aa275d267985ed9e440fe31d8a0 100644 (file)
--- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
@@ -362,12 +362,19 @@ void ipoib_mcast_carrier_on_task(struct work_struct *work)
 {
        struct ipoib_dev_priv *priv = container_of(work, struct ipoib_dev_priv,
                                                   carrier_on_task);
+       struct ib_port_attr attr;
 
        /*
         * Take rtnl_lock to avoid racing with ipoib_stop() and
         * turning the carrier back on while a device is being
         * removed.
         */
+       if (ib_query_port(priv->ca, priv->port, &attr) ||
+           attr.state != IB_PORT_ACTIVE) {
+               ipoib_dbg(priv, "Keeping carrier off until IB port is active\n");
+               return;
+       }
+
        rtnl_lock();
        netif_carrier_on(priv->dev);
        rtnl_unlock();