Merge "libbinder: return error correctly in RpcTransportTipcAndroid" am: 62bb50a6

            // read and call readFn as many times as needed to get all the data

            status_t ret = fillReadBuffer();

            if (ret != OK) {

                return ret;

                // We need to emulate a Linux read call, which sets errno on

                // error and returns -1

                errno = -ret;

                return -1;

            }

            ssize_t processSize = 0;