snapshot: add Unlock before return (ethereum#20948)

* Forget Unlock in snapshot * Remove Unlock before panic
MariusVanDerWijden · Apr 21, 2020 · 7599999 · 7599999
1 parent 79b68dd
commit 7599999
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/core/state/snapshot/iterator.go b/core/state/snapshot/iterator.go
@@ -125,6 +125,7 @@ func (it *diffAccountIterator) Account() []byte {
 	blob, ok := it.layer.accountData[it.curHash]
 	if !ok {
 		if _, ok := it.layer.destructSet[it.curHash]; ok {
+			it.layer.lock.RUnlock()
 			return nil
 		}
 		panic(fmt.Sprintf("iterator referenced non-existent account: %x", it.curHash))