Do not attempt to save a nil state (#4758)

prysmaticlabs · Feb 5, 2020 · c496170 · c496170
1 parent 945edb6
commit c496170
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/beacon-chain/db/kv/state.go b/beacon-chain/db/kv/state.go
@@ -106,6 +106,9 @@ func (k *Store) GenesisState(ctx context.Context) (*state.BeaconState, error) {
 func (k *Store) SaveState(ctx context.Context, state *state.BeaconState, blockRoot [32]byte) error {
 	ctx, span := trace.StartSpan(ctx, "BeaconDB.SaveState")
 	defer span.End()
+	if state == nil {
+		return errors.New("nil state")
+	}
 	enc, err := encode(state.InnerStateUnsafe())
 	if err != nil {
 		return err