snapshot: add Unlock before return (#20948)

* Forget Unlock in snapshot * Remove Unlock before panic

snapshot: add Unlock before return (#20948)
* Forget Unlock in snapshot * Remove Unlock before panic
7599999d · Boqin Qin · GitHub · 79b68dd7 · 7599999d
Unverified Commit 7599999d authored 5 years ago by Boqin Qin Committed by GitHub 5 years ago
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iterator.go core/state/snapshot/iterator.go +1 -0

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--- 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))