snapshot: add Unlock before return (#20948)

* Forget Unlock in snapshot * Remove Unlock before panic
2020-04-21 16:11:38 +08:00 · 2020-04-21 16:11:38 +08:00 · 7599999dcd
commit 7599999dcd
parent 79b68dd78d
1 changed files with 1 additions and 0 deletions
--- 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))