tpm: Convert tpm_find_get_ops() to use tpm_default_chip()

 */

struct tpm_chip *tpm_find_get_ops(struct tpm_chip *chip)

{

	struct tpm_chip *res = NULL;

	int chip_num = 0;

	int chip_prev;

	mutex_lock(&idr_lock);

	int rc;

	if (!chip) {

		do {

			chip_prev = chip_num;

			chip = idr_get_next(&dev_nums_idr, &chip_num);

			if (chip && !tpm_try_get_ops(chip)) {

				res = chip;

				break;

			}

		} while (chip_prev != chip_num);

	} else {

	if (chip) {

		if (!tpm_try_get_ops(chip))

			res = chip;

			return chip;

		return NULL;

	}

	mutex_unlock(&idr_lock);

	return res;

	chip = tpm_default_chip();

	if (!chip)

		return NULL;

	rc = tpm_try_get_ops(chip);

	/* release additional reference we got from tpm_default_chip() */

	put_device(&chip->dev);

	if (rc)

		return NULL;

	return chip;

}

/**