29 	int fd;  in read_msr()  local
33 	fd = open(msr_file_name, O_RDONLY);  in read_msr()
34 	if (fd < 0)  in read_msr()
36 	if (lseek(fd, idx, SEEK_CUR) == -1)  in read_msr()
38 	if (read(fd, val, sizeof *val) != sizeof *val)  in read_msr()
40 	close(fd);  in read_msr()
43 	close(fd);  in read_msr()
58 	int fd;  in write_msr()  local
62 	fd = open(msr_file_name, O_WRONLY);  in write_msr()
63 	if (fd < 0)  in write_msr()
65 	if (lseek(fd, idx, SEEK_CUR) == -1)  in write_msr()
67 	if (write(fd, &val, sizeof val) != sizeof val)  in write_msr()
69 	close(fd);  in write_msr()
72 	close(fd);  in write_msr()