net/nfc/core.c

35 	int rc = 0;
42 		rc = -ENODEV;
47 		rc = -EBUSY;
52 		rc = -EOPNOTSUPP;
57 	rc = dev->ops->fw_download(dev, firmware_name);
58 	if (rc)
63 	return rc;
91 	int rc = 0;
98 		rc = -ENODEV;
103 		rc = -ERFKILL;
108 		rc = -EBUSY;
113 		rc = -EALREADY;
118 		rc = dev->ops->dev_up(dev);
120 	if (!rc)
129 	return rc;
139 	int rc = 0;
146 		rc = -ENODEV;
151 		rc = -EALREADY;
156 		rc = -EBUSY;
167 	return rc;
200 	int rc;
211 		rc = -ENODEV;
216 		rc = -ENODEV;
221 		rc = -EBUSY;
225 	rc = dev->ops->start_poll(dev, im_protocols, tm_protocols);
226 	if (!rc) {
233 	return rc;
243 	int rc = 0;
250 		rc = -ENODEV;
255 		rc = -EINVAL;
265 	return rc;
282 	int rc = 0;
295 		rc = -ENODEV;
300 		rc = -EALREADY;
306 		rc = -EINVAL;
312 		rc = -ENOTCONN;
316 	rc = dev->ops->dep_link_up(dev, target, comm_mode, gb, gb_len);
317 	if (!rc) {
324 	return rc;
329 	int rc = 0;
339 		rc = -ENODEV;
344 		rc = -EALREADY;
348 	rc = dev->ops->dep_link_down(dev);
349 	if (!rc) {
360 	return rc;
396 	int rc;
405 		rc = -ENODEV;
410 		rc = -EBUSY;
416 		rc = -ENOTCONN;
420 	rc = dev->ops->activate_target(dev, target, protocol);
421 	if (!rc) {
432 	return rc;
444 	int rc = 0;
452 		rc = -ENODEV;
457 		rc = -ENOTCONN;
462 		rc = -ENOTCONN;
474 	return rc;
491 	int rc;
499 		rc = -ENODEV;
506 			rc = -EADDRNOTAVAIL;
514 		rc = dev->ops->im_transceive(dev, dev->active_target, skb, cb,
517 		if (!rc && dev->ops->check_presence && !dev->shutting_down)
521 		rc = dev->ops->tm_send(dev, skb);
523 		rc = -ENOTCONN;
531 	return rc;
549 	int rc;
556 		rc = -ENODEV;
561 		rc = -ENODEV;
566 		rc = -EBUSY;
571 		rc = -EOPNOTSUPP;
577 		rc = -EINVAL;
582 		rc = -EALREADY;
586 	rc = dev->ops->enable_se(dev, se_idx);
587 	if (rc >= 0)
592 	return rc;
598 	int rc;
605 		rc = -ENODEV;
610 		rc = -ENODEV;
615 		rc = -EOPNOTSUPP;
621 		rc = -EINVAL;
626 		rc = -EALREADY;
630 	rc = dev->ops->disable_se(dev, se_idx);
631 	if (rc >= 0)
636 	return rc;
670 	int rc;
677 		rc = nfc_set_remote_general_bytes(dev, gb, gb_len);
678 		if (rc < 0)
687 	rc = nfc_genl_tm_activated(dev, protocol);
692 	return rc;
874 	int rc;
893 	rc = nfc_genl_se_added(dev, se_idx, type);
894 	if (rc < 0) {
898 		return rc;
908 	int rc;
914 			rc = nfc_genl_se_removed(dev, se_idx);
915 			if (rc < 0)
916 				return rc;
931 	int rc;
938 		rc = -EPROTO;
942 	rc = nfc_genl_se_transaction(dev, se_idx, evt_transaction);
945 	return rc;
951 	int rc;
956 	rc = nfc_genl_se_connectivity(dev, se_idx);
958 	return rc;
987 	int rc;
992 		rc = dev->ops->check_presence(dev, dev->active_target);
993 		if (rc == -EOPNOTSUPP)
995 		if (rc) {
1056 	int rc;
1069 	rc = ida_alloc(&nfc_index_ida, GFP_KERNEL);
1070 	if (rc < 0)
1072 	dev->idx = rc;
1112 	int rc;
1118 	rc = device_add(&dev->dev);
1121 	if (rc < 0)
1122 		return rc;
1124 	rc = nfc_llcp_register_device(dev);
1125 	if (rc)
1140 	rc = nfc_genl_device_added(dev);
1141 	if (rc)
1156 	int rc;
1160 	rc = nfc_genl_device_removed(dev);
1161 	if (rc)
1190 	int rc;
1194 	rc = class_register(&nfc_class);
1195 	if (rc)
1196 		return rc;
1198 	rc = nfc_genl_init();
1199 	if (rc)
1205 	rc = rawsock_init();
1206 	if (rc)
1209 	rc = nfc_llcp_init();
1210 	if (rc)
1213 	rc = af_nfc_init();
1214 	if (rc)
1227 	return rc;