fix(controller): change jsonpath value addition condition to avoid index out of range error (#658)

Signed-off-by: Abhishek Agarwal <abhishek.agarwal@mayadata.io>

Author: Abhishek Agarwal

cmd/ndm_daemonset/controller/blockdevice.go

@@ -127,7 +127,7 @@ func addBdLabels(bd *apis.BlockDevice, ctrl *Controller) error {
 			valueStrings := []string{}
 			var jsonPathFieldValue string
 
-			if len(values) > 0 || len(values[0]) > 0 {
+			if len(values) > 0 && len(values[0]) > 0 {
 				for arrIx := range values {
 					for valIx := range values[arrIx] {
 						valueStrings = append(valueStrings, fmt.Sprintf("%v", values[arrIx][valIx].Interface()))