eth/api: fix potential nil deref in AccountRange (#21710)

* Fix potential nil pointer error when neither block number nor hash is specified to accountRange * Update error description
multi-geth · Oct 20, 2020 · 3e82c9e · 3e82c9e
1 parent 9d25f34
commit 3e82c9e
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/eth/api.go b/eth/api.go
@@ -389,6 +389,8 @@ func (api *PublicDebugAPI) AccountRange(blockNrOrHash rpc.BlockNumberOrHash, sta
 		if err != nil {
 			return state.IteratorDump{}, err
 		}
+	} else {
+		return state.IteratorDump{}, errors.New("either block number or block hash must be specified")
 	}
 
 	if maxResults > AccountRangeMaxResults || maxResults <= 0 {