internal/ethapi: listen to ctx cancellation in access list (#29686)

Author: holiman

internal/ethapi/api.go

@@ -1524,6 +1524,9 @@ func AccessList(ctx context.Context, b Backend, blockNrOrHash rpc.BlockNumberOrH
 		prevTracer = logger.NewAccessListTracer(*args.AccessList, args.from(), to, precompiles)
 	}
 	for {
+		if err := ctx.Err(); err != nil {
+			return nil, 0, nil, err
+		}
 		// Retrieve the current access list to expand
 		accessList := prevTracer.AccessList()
 		log.Trace("Creating access list", "input", accessList)