swarm, cmd/swarm: Merge branch 'master' into multiple-ens-endpoints

1 files changed, 6 insertions, 6 deletions

diff --git a/ethclient/ethclient.go b/ethclient/ethclient.go
index 7f73ab113..87a912901 100644
--- a/ethclient/ethclient.go
+++ b/ethclient/ethclient.go
@@ -455,13 +455,13 @@ func (ec *Client) SuggestGasPrice(ctx context.Context) (*big.Int, error) {
 // the current pending state of the backend blockchain. There is no guarantee that this is
 // the true gas limit requirement as other transactions may be added or removed by miners,
 // but it should provide a basis for setting a reasonable default.
-func (ec *Client) EstimateGas(ctx context.Context, msg ethereum.CallMsg) (*big.Int, error) {
-	var hex hexutil.Big
+func (ec *Client) EstimateGas(ctx context.Context, msg ethereum.CallMsg) (uint64, error) {
+	var hex hexutil.Uint64
 	err := ec.c.CallContext(ctx, &hex, "eth_estimateGas", toCallArg(msg))
 	if err != nil {
-		return nil, err
+		return 0, err
 	}
-	return (*big.Int)(&hex), nil
+	return uint64(hex), nil
 }
 
 // SendTransaction injects a signed transaction into the pending pool for execution.
@@ -487,8 +487,8 @@ func toCallArg(msg ethereum.CallMsg) interface{} {
 	if msg.Value != nil {
 		arg["value"] = (*hexutil.Big)(msg.Value)
 	}
-	if msg.Gas != nil {
-		arg["gas"] = (*hexutil.Big)(msg.Gas)
+	if msg.Gas != 0 {
+		arg["gas"] = hexutil.Uint64(msg.Gas)
 	}
 	if msg.GasPrice != nil {
 		arg["gasPrice"] = (*hexutil.Big)(msg.GasPrice)