vme: don't open-code fixed_size_llseek()

static loff_t vme_user_llseek(struct file *file, loff_t off, int whence)

{

	loff_t absolute = -1;

	unsigned int minor = MINOR(file_inode(file)->i_rdev);

	size_t image_size;

	loff_t res;

	if (minor == CONTROL_MINOR)

		return -EINVAL;

	mutex_lock(&image[minor].mutex);

	image_size = vme_get_size(image[minor].resource);

	switch (whence) {

	case SEEK_SET:

		absolute = off;

		break;

	case SEEK_CUR:

		absolute = file->f_pos + off;

		break;

	case SEEK_END:

		absolute = image_size + off;

		break;

	default:

		mutex_unlock(&image[minor].mutex);

		return -EINVAL;

	}

	if ((absolute < 0) || (absolute >= image_size)) {

		mutex_unlock(&image[minor].mutex);

		return -EINVAL;

	}

	file->f_pos = absolute;

	res = fixed_size_llseek(file, off, whence, image_size);

	mutex_unlock(&image[minor].mutex);

	return absolute;

	return res;

}

/*