From da32cef4aef7f48dd9162d48e0578081367d7504 Mon Sep 17 00:00:00 2001
From: Kyle Brandt <kyle@grafana.com>
Date: Mon, 7 Dec 2020 13:58:20 -0500
Subject: [PATCH] Expr: fix func argument panic (#29663)

would get wrong type for reflect
---
 pkg/expr/mathexp/exp.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkg/expr/mathexp/exp.go b/pkg/expr/mathexp/exp.go
index dfcc22a91de..a748a0f9418 100644
--- a/pkg/expr/mathexp/exp.go
+++ b/pkg/expr/mathexp/exp.go
@@ -505,7 +505,7 @@ func (e *State) walkFunc(node *parse.FuncNode) (Results, error) {
 		case *parse.VarNode:
 			v = e.Vars[t.Name]
 		case *parse.ScalarNode:
-			v = t.Float64
+			v = NewScalarResults(&t.Float64)
 		case *parse.FuncNode:
 			v, err = e.walkFunc(t)
 		case *parse.UnaryNode: