CI: Bump golangci-lint to 2.0.2 (#103572)

pkg/expr/mathexp/exp.go

@@ -63,7 +63,7 @@ func (e *Expr) Execute(refID string, vars Vars, tracer tracing.Tracer) (r Result
 
 func (e *Expr) executeState(s *State) (r Results, err error) {
 	defer errRecover(&err, s)
-	r, err = s.walk(e.Tree.Root)
+	r, err = s.walk(e.Root)
 	s.addDropNotices(&r)
 	return
 }

pkg/expr/mathexp/parse/node.go

@@ -176,7 +176,7 @@ func (f *FuncNode) Check(t *Tree) error {
 		// 	argType = TypeNumberSet
 		// }
 		if funcType == TypeVariantSet {
-			if !(argType == TypeNumberSet || argType == TypeSeriesSet || argType == TypeScalar) {
+			if argType != TypeNumberSet && argType != TypeSeriesSet && argType != TypeScalar {
 				return fmt.Errorf("parse: expected %v or %v for argument %v, got %v", TypeNumberSet, TypeSeriesSet, i, argType)
 			}
 		} else if funcType != argType {

pkg/expr/mathexp/resample.go

@@ -36,10 +36,7 @@ func (s Series) Resample(refID string, interval time.Duration, downsampler Reduc
 	for !t.After(to) && idx <= newSeriesLength {
 		vals := make([]*float64, 0)
 		sIdx := bookmark
-		for {
-			if sIdx == s.Len() {
-				break
-			}
+		for sIdx != s.Len() {
 			st, v := s.GetPoint(sIdx)
 			if st.After(t) {
 				break

pkg/expr/transform.go

@@ -74,8 +74,8 @@ func (s *Service) TransformData(ctx context.Context, now time.Time, req *Request
 	ctx, span := s.tracer.Start(ctx, "SSE.TransformData")
 	defer func() {
 		var respStatus string
-		switch {
-		case err == nil:
+		switch err {
+		case nil:
 			respStatus = "success"
 		default:
 			respStatus = "failure"