Fix 298 by reusing the label instead of taking it from the json of smartctl

Signed-off-by: Frank Wettstein <wettstein.frank@gmail.com>

Author: Frank Wettstein

main.go

@@ -69,7 +69,7 @@ func (i *SMARTctlManagerCollector) Collect(ch chan<- prometheus.Metric) {
 		json := readData(i.logger, device)
 		if json.Exists() {
 			info.SetJSON(json)
-			smart := NewSMARTctl(i.logger, json, ch)
+			smart := NewSMARTctl(i.logger, json, ch, device)
 			smart.Collect()
 		}
 	}

smartctl.go

@@ -55,7 +55,7 @@ func buildDeviceLabel(inputName string, inputType string) string {
 }
 
 // NewSMARTctl is smartctl constructor
-func NewSMARTctl(logger *slog.Logger, json gjson.Result, ch chan<- prometheus.Metric) SMARTctl {
+func NewSMARTctl(logger *slog.Logger, json gjson.Result, ch chan<- prometheus.Metric, device Device) SMARTctl {
 	var model_name string
 	if obj := json.Get("model_name"); obj.Exists() {
 		model_name = obj.String()
@@ -72,7 +72,7 @@ func NewSMARTctl(logger *slog.Logger, json gjson.Result, ch chan<- prometheus.Me
 		json:   json,
 		logger: logger,
 		device: SMARTDevice{
-			device:     buildDeviceLabel(json.Get("device.name").String(), json.Get("device.type").String()),
+			device:     device.Label,
 			serial:     strings.TrimSpace(json.Get("serial_number").String()),
 			family:     strings.TrimSpace(GetStringIfExists(json, "model_family", "unknown")),
 			model:      strings.TrimSpace(model_name),