Merge "Handle ENITR failure for Headset control channel." into jb-dev

    pfd.fd = fd;

    pfd.events = POLLIN;

    *err = errno = 0;

    int ret = poll(&pfd, 1, timeout_ms);

    int ret = TEMP_FAILURE_RETRY(poll(&pfd, 1, timeout_ms));

    if (ret < 0) {

        ALOGE("poll() error\n");

        *err = errno;

    while ((int)(bufit - buf) < (len - 1))

    {

        errno = 0;

        int rc = read(fd, bufit, 1);

        int rc = TEMP_FAILURE_RETRY(read(fd, bufit, 1));

        if (!rc)

            break;

            {

                char ch;

                errno = 0;

                int nr = read(nat->rfcomm_sock, &ch, 1);

                int nr = TEMP_FAILURE_RETRY(read(nat->rfcomm_sock, &ch, 1));

                /* It should be that nr != 1 because we just opened a socket

                   and we haven't sent anything over it for the other side to

                   respond... but one can't be paranoid enough.