drivers/tee/tee_core.c

51 	int rc;
59 		rc = -ENOMEM;
65 	rc = teedev->desc->ops->open(ctx);
66 	if (rc)
73 	return ERR_PTR(rc);
153 	int rc;
157 		rc = PTR_ERR(shash);
159 		return rc;
165 		rc = -ENOMEM;
171 	rc = crypto_shash_init(desc);
172 	if (rc < 0)
175 	rc = crypto_shash_update(desc, (const u8 *)ns, sizeof(*ns));
176 	if (rc < 0)
179 	rc = crypto_shash_update(desc, (const u8 *)name, size);
180 	if (rc < 0)
183 	rc = crypto_shash_final(desc, hash);
184 	if (rc < 0)
198 	return rc;
208 	int rc;
239 			rc = -E2BIG;
248 			rc = -EPERM;
255 			rc = -E2BIG;
261 		rc = -EINVAL;
265 	rc = uuid_v5(uuid, &tee_client_uuid_ns, name, name_len);
269 	return rc;
470 	int rc;
502 		rc = params_from_user(ctx, params, arg.num_params, uparams);
503 		if (rc)
510 		rc = -EPERM;
514 	rc = ctx->teedev->desc->ops->open_session(ctx, &arg, params);
515 	if (rc)
522 		rc = -EFAULT;
525 	rc = params_to_user(uparams, arg.num_params, params);
531 	if (rc && have_session && ctx->teedev->desc->ops->close_session)
543 	return rc;
549 	int rc;
580 		rc = params_from_user(ctx, params, arg.num_params, uparams);
581 		if (rc)
585 	rc = ctx->teedev->desc->ops->invoke_func(ctx, &arg, params);
586 	if (rc)
591 		rc = -EFAULT;
594 	rc = params_to_user(uparams, arg.num_params, params);
604 	return rc;
684 	int rc;
712 	rc = params_from_user(ctx, params, num_params, uarg->params);
713 	if (rc)
716 	rc = ctx->teedev->desc->ops->supp_recv(ctx, &func, &num_params, params);
717 	if (rc)
722 		rc = -EFAULT;
726 	rc = params_to_supp(ctx, uarg->params, num_params, params);
729 	return rc;
781 	long rc;
811 	rc = params_from_supp(params, num_params, uarg->params);
812 	if (rc)
815 	rc = ctx->teedev->desc->ops->supp_send(ctx, ret, num_params, params);
818 	return rc;
889 	int rc, max_id;
931 	rc = dev_set_name(&teedev->dev, "%s", teedev->name);
932 	if (rc) {
933 		ret = ERR_PTR(rc);
997 	int rc;
1006 	rc = cdev_device_add(&teedev->cdev, &teedev->dev);
1007 	if (rc) {
1011 			MINOR(teedev->dev.devt), rc);
1012 		return rc;
1238 	int rc;
1240 	rc = class_register(&tee_class);
1241 	if (rc) {
1243 		return rc;
1246 	rc = alloc_chrdev_region(&tee_devt, 0, TEE_NUM_DEVICES, "tee");
1247 	if (rc) {
1252 	rc = bus_register(&tee_bus_type);
1253 	if (rc) {
1265 	return rc;