Merge "__ashmem_open_locked(): log on every exit path." into main

    struct stat st;

    if (TEMP_FAILURE_RETRY(fstat(fd, &st)) == -1) {

        ALOGE("Unable to fstat ashmem device: %m");

        return -1;

    }

    if (!S_ISCHR(st.st_mode) || !st.st_rdev) {

        ALOGE("ashmem device is not a character device");

        errno = ENOTTY;

        return -1;

    }