change parameter to pointer

models/drivers.go

@@ -11,10 +11,11 @@ func (d *Drivers) AddNewDriver(typ string) *Driver {
 	return (*d)[typ]
 }
 
-func (d *Drivers) AddDriver(drv Driver) {
+func (d *Drivers) AddDriver(drv *Driver) {
 	if driver, ok := (*d)[drv.Type]; ok {
 		driver.AddBuses(drv.Buses)
 		(*d)[drv.Type] = driver
+		return
 	}
-	(*d)[drv.Type] = &drv
+	(*d)[drv.Type] = drv
 }