net: hns3: add reset checking before set channels

hns3_set_channels() should check the resetting status firstly,
since the device will reinitialize when resetting. If the
reset has not completed, the hns3_set_channels() may access
invalid memory.
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/hisilicon/hns3/hns3_enet.c

@@ -4378,6 +4378,9 @@ int hns3_set_channels(struct net_device *netdev,
 	u16 org_tqp_num;
 	int ret;
 
+	if (hns3_nic_resetting(netdev))
+		return -EBUSY;
+
 	if (ch->rx_count || ch->tx_count)
 		return -EINVAL;