IPoIB/cm: Drain cq in ipoib_cm_dev_stop()

Since NAPI polling is disabled while ipoib_cm_dev_stop() is running,
ipoib_cm_dev_stop() must poll the CQ itself in order to see the
packets draining.

Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index e8fcd628be73..f133b56fd978 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -726,6 +726,7 @@ void ipoib_cm_dev_stop(struct net_device *dev)
                 }
                 spin_unlock_irq(&priv->lock);
                 msleep(1);
+                ipoib_drain_cq(dev);
                 spin_lock_irq(&priv->lock);
         }