net/mlx5: Remove return statement exist at the end of void function

void function return statements are not generally useful.
Signed-off-by: NWenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: NWeihang Li <liweihang@huawei.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>

drivers/net/ethernet/mellanox/mlx5/core/lag.c

@@ -603,8 +603,6 @@ void mlx5_lag_add(struct mlx5_core_dev *dev, struct net_device *netdev)
 	if (err)
 		mlx5_core_err(dev, "Failed to init multipath lag err=%d\n",
 			      err);
-
-	return;
 }
 
 /* Must be called with intf_mutex held */

drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c

@@ -167,7 +167,6 @@ static void irq_set_name(char *name, int vecidx)
 
 	snprintf(name, MLX5_MAX_IRQ_NAME, "mlx5_comp%d",
 		 vecidx - MLX5_IRQ_VEC_COMP_BASE);
-	return;
 }
 
 static int request_irqs(struct mlx5_core_dev *dev, int nvec)

drivers/net/ethernet/mellanox/mlx5/core/rdma.c

@@ -180,5 +180,4 @@ void mlx5_rdma_enable_roce(struct mlx5_core_dev *dev)
 	mlx5_rdma_del_roce_addr(dev);
 disable_roce:
 	mlx5_nic_vport_disable_roce(dev);
-	return;
 }