[PATCH -next] IB/hfi1: Use free_netdev() in hfi1_netdev_free()

[YueHaibing]

dummy_netdev shold be freed by free_netdev() instead of
kfree(). Also remove unneeded variable 'priv'

Fixes: 4730f4a6c6b2 ("IB/hfi1: Activate the dummy netdev")
Signed-off-by: YueHaibing <yuehaib...@huawei.com>
---
 drivers/infiniband/hw/hfi1/netdev_rx.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/infiniband/hw/hfi1/netdev_rx.c 
b/drivers/infiniband/hw/hfi1/netdev_rx.c
index 58af6a454761..63688e85e8da 100644
--- a/drivers/infiniband/hw/hfi1/netdev_rx.c
+++ b/drivers/infiniband/hw/hfi1/netdev_rx.c
@@ -371,12 +371,9 @@ int hfi1_netdev_alloc(struct hfi1_devdata *dd)
 
 void hfi1_netdev_free(struct hfi1_devdata *dd)
 {
-       struct hfi1_netdev_priv *priv;
-
        if (dd->dummy_netdev) {
-               priv = hfi1_netdev_priv(dd->dummy_netdev);
                dd_dev_info(dd, "hfi1 netdev freed\n");
-               kfree(dd->dummy_netdev);
+               free_netdev(dd->dummy_netdev);
                dd->dummy_netdev = NULL;
        }
 }
-- 
2.17.1