net: hns3: adjust hns3_uninit_phy()'s location in the hns3_client_uninit()
authorHuazhong Tan <tanhuazhong@huawei.com>
Tue, 28 May 2019 09:03:01 +0000 (17:03 +0800)
committerDavid S. Miller <davem@davemloft.net>
Wed, 29 May 2019 00:39:01 +0000 (17:39 -0700)
hns3_uninit_phy() should be called before checking
HNS3_NIC_STATE_INITED flags, otherwise when this checking fails,
there is nobody to call hns3_uninit_phy().

Fixes: c8a8045b2d0a ("net: hns3: Fix NULL deref when unloading driver")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c

index 5e12705bae349a26153e26bb075006df92e51343..f6dc3054bcd10eb1fc108457b77179fb40dc102b 100644 (file)
@@ -3901,6 +3901,8 @@ static void hns3_client_uninit(struct hnae3_handle *handle, bool reset)
 
        hns3_client_stop(handle);
 
+       hns3_uninit_phy(netdev);
+
        if (!test_and_clear_bit(HNS3_NIC_STATE_INITED, &priv->state)) {
                netdev_warn(netdev, "already uninitialized\n");
                goto out_netdev_free;
@@ -3910,8 +3912,6 @@ static void hns3_client_uninit(struct hnae3_handle *handle, bool reset)
 
        hns3_force_clear_all_rx_ring(handle);
 
-       hns3_uninit_phy(netdev);
-
        hns3_nic_uninit_vector_data(priv);
 
        ret = hns3_nic_dealloc_vector_data(priv);