char/tpm/tpm-interface.c

64 	int rc;
85 	rc = chip->ops->send(chip, buf, count);
86 	if (rc < 0) {
87 		if (rc != -EPIPE)
89 				"%s: send(): error %d\n", __func__, rc);
90 		return rc;
96 	if (rc > 0) {
98 			 "%s: send(): invalid value %d\n", __func__, rc);
99 		rc = 0;
128 		rc = len;
129 		dev_err(&chip->dev, "tpm_transmit: tpm_recv: error %d\n", rc);
131 		rc = -EFAULT;
133 	return rc ? rc : len;
159 	u32 rc = 0;
176 		rc = be32_to_cpu(header->return_code);
177 		if (rc != TPM2_RC_RETRY && rc != TPM2_RC_TESTING)
183 		if (rc == TPM2_RC_TESTING && cc == TPM2_CC_SELF_TEST)
187 			if (rc == TPM2_RC_RETRY)
262 	int rc;
268 	rc = (chip->flags & TPM_CHIP_FLAG_TPM2) != 0;
272 	return rc;
287 	int rc;
294 		rc = tpm2_pcr_read(chip, pcr_idx, digest, NULL);
296 		rc = tpm1_pcr_read(chip, pcr_idx, digest->digest);
299 	return rc;
317 	int rc;
326 			rc = -EINVAL;
332 		rc = tpm2_pcr_extend(chip, pcr_idx, digests);
336 	rc = tpm1_pcr_extend(chip, pcr_idx, digests[0].digest,
341 	return rc;
356 	int rc;
363 	rc = tpm_transmit_cmd(chip, &buf, 0, "attempting to a send a command");
366 	return rc;
372 	int rc;
378 		rc = tpm2_auto_startup(chip);
380 		rc = tpm1_auto_startup(chip);
382 	return rc;
392 	int rc = 0;
404 	rc = tpm_try_get_ops(chip);
405 	if (!rc) {
409 			rc = tpm1_pm_suspend(chip, tpm_suspend_pcr);
417 	if (rc)
418 		dev_err(dev, "Ignoring error %d while suspending\n", rc);
456 	int rc;
466 		rc = tpm2_get_random(chip, out, max);
468 		rc = tpm1_get_random(chip, out, max);
471 	return rc;
477 	int rc;
479 	rc = class_register(&tpm_class);
480 	if (rc) {
482 		return rc;
485 	rc = class_register(&tpmrm_class);
486 	if (rc) {
491 	rc = alloc_chrdev_region(&tpm_devt, 0, 2*TPM_NUM_DEVICES, "tpm");
492 	if (rc < 0) {
497 	rc = tpm_dev_common_init();
498 	if (rc) {
512 	return rc;