fix panic

domiwei · domiwei · commit f45d6356c459 · 2024-04-24T00:31:23.000+08:00
diff --git a/cl/beacon/synced_data/synced_data.go b/cl/beacon/synced_data/synced_data.go
@@ -44,7 +44,11 @@ func (s *SyncedDataManager) HeadState() *state.CachingBeaconState {
 }
 
 func (s *SyncedDataManager) HeadStateReader() state.BeaconStateReader {
-	return s.HeadState()
+	headstate := s.HeadState()
+	if headstate == nil {
+		return nil
+	}
+	return headstate
 }
 
 func (s *SyncedDataManager) Syncing() bool {

Original file line number	Diff line number	Diff line change
`@@ -44,7 +44,11 @@ func (s SyncedDataManager) HeadState() state.CachingBeaconState {`
`44`	`44`	`}`
`45`	`45`
`46`	`46`	`func (s *SyncedDataManager) HeadStateReader() state.BeaconStateReader {`
`47`		`- return s.HeadState()`
	`47`	`+ headstate := s.HeadState()`
	`48`	`+ if headstate == nil {`
	`49`	`+ return nil`
	`50`	`+ }`
	`51`	`+ return headstate`
`48`	`52`	`}`
`49`	`53`
`50`	`54`	`func (s *SyncedDataManager) Syncing() bool {`