From 3012d4c04312734c4441e95627c315acb2703d4e Mon Sep 17 00:00:00 2001
From: jackyin <yincong@baidu.com>
Date: Mon, 11 Nov 2024 19:09:11 +0800
Subject: [PATCH] Flame Graph: Fix crash when it receives empty data (#95604)

flame graph crash
---
 packages/grafana-flamegraph/src/FlameGraph/dataTransform.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/grafana-flamegraph/src/FlameGraph/dataTransform.ts b/packages/grafana-flamegraph/src/FlameGraph/dataTransform.ts
index fb7b921f4dd..51b41f97397 100644
--- a/packages/grafana-flamegraph/src/FlameGraph/dataTransform.ts
+++ b/packages/grafana-flamegraph/src/FlameGraph/dataTransform.ts
@@ -237,7 +237,7 @@ export function checkFields(data: DataFrame): CheckFieldsResult | undefined {
 
   for (const field of fields) {
     const [name, types] = field;
-    const frameField = data.fields.find((f) => f.name === name);
+    const frameField = data?.fields.find((f) => f.name === name);
     if (!frameField) {
       missingFields.push(name);
       continue;