security/smack/smack_lsm.c

290  * NULL if there was no label to fetch, or an error code.
297 	struct smack_known *skp = NULL;
303 	if (buffer == NULL)
310 		skp = NULL;
367 		if (nrp == NULL) {
393 		if (nklep == NULL) {
434 	struct smk_audit_info ad, *saip = NULL;
532 	if (smack_syslog_label != NULL && smack_syslog_label != skp)
737 		param->string = NULL;
749 		char *arg = NULL;
764 				*mnt_opts = NULL;
927 	if (isp->smk_task == NULL || isp->smk_task == bsp->smk_task)
941 		if (likely(tracer != NULL))
1335 		skp = size ? smk_import_entry(value, size) : NULL;
1338 		else if (skp == NULL || (check_star &&
1464 		isp->smk_task = NULL;
1466 		isp->smk_mmap = NULL;
1562 	char *label = NULL;
1581 		if (sock == NULL || sock->sk == NULL)
1601 		if (*buffer == NULL)
1620 	if (buffer != NULL && len <= buffer_size)
1780  * @file: contains the file structure for file to map (may be NULL).
1785  * The @file may be NULL, e.g. if mapping anonymous memory.
1805 	if (file == NULL)
1812 	if (isp->smk_mmap == NULL)
1933 	rc = smk_access(skp, tkp, MAY_DELIVER, NULL);
2042 	init_task_smack(smack_cred(cred), NULL, NULL);
2338 	if (cred == NULL) {
2344 	 * If the cred isn't NULL we're dealing with some USB IO
2390 	if (ssp == NULL)
2403 	ssp->smk_packet = NULL;
2460 * Returns the label of the far end or NULL if it's not special.
2468 		return NULL;
2480 	return NULL;
2510 * Returns the label of the far end or NULL if it's not special.
2523 		return NULL;
2527 		 * If the label is NULL the entry has
2530 		if (snp->smk_label == NULL)
2548 	return NULL;
2630 	if (hkp != NULL) {
2702 	if (address == NULL) {
2718 		 * A NULL address is only used for updating existing
2758 	if (spp == NULL)
2787 	struct smack_known *skp = NULL;
2802 	if (skp != NULL && object != NULL)
2804 	if (skp == NULL)
2806 	if (object == NULL)
2858 	if (value == NULL || size > SMK_LONGLABEL || size == 0)
2886 	if (sock == NULL || sock->sk == NULL)
2907 		smk_ipv6_port_label(sock, NULL);
2930 	if (sock->sk == NULL)
2985 	if (sock->sk != NULL && sock->sk->sk_family == PF_INET6) {
3010 	if (sock->sk == NULL)
3019 		struct smack_known *rsp = NULL;
3025 		if (rsp != NULL) {
3451 	if (inode == NULL)
3619 			skp = NULL;
3625 			skp = NULL;
3632 	if (final == NULL)
3691 	if (cp == NULL)
3721 	if (value == NULL || size == 0 || size >= SMK_LONGLABEL)
3750 	if (new == NULL)
3913 	 * Perfectly reasonable for this to be NULL
3915 	if (sip == NULL)
3932 		if (rsp != NULL)
4015 		if (ssp != NULL && ssp->smk_in == &smack_known_star)
4044 	if (ip6 == NULL)
4058 		if (th != NULL)
4064 		if (uh != NULL)
4069 		if (dh != NULL)
4081  * Returns smack_known of the secmark or NULL if that won't work.
4086 	if (skb == NULL || skb->secmark == 0)
4087 		return NULL;
4094 	return NULL;
4107  * Returns smack_known of the IP options or NULL if that won't work.
4113 	struct socket_smack *ssp = NULL;
4114 	struct smack_known *skp = NULL;
4142 	struct smack_known *skp = NULL;
4165 		if (skp == NULL) {
4167 			if (skp == NULL)
4175 		ipv4_skb_to_auditdata(skb, &ad.a, NULL);
4197 		if (skp == NULL) {
4201 			if (skp == NULL)
4208 		ipv6_skb_to_auditdata(skb, &ad.a, NULL);
4246 	if (ssp->smk_packet != NULL) {
4276 	struct socket_smack *ssp = NULL;
4278 	struct sock *sk = NULL;
4282 	if (skb != NULL) {
4290 	if (family == PF_UNSPEC && sock != NULL)
4307 		if (sock != NULL)
4310 		if (skp != NULL)
4340 	if (sk == NULL ||
4394 	if (skp == NULL) {
4396 		if (skp == NULL)
4404 	ipv4_skb_to_auditdata(skb, &ad.a, NULL);
4432 	if (hskp == NULL)
4457 		ssp->smk_packet = NULL;
4496 	key->security = NULL;
4543 	if (keyp == NULL)
4549 	if (keyp->security == NULL)
4554 	if (tkp == NULL)
4577  * May also return 0 (and a NULL buffer pointer) if there is no label.
4585 	if (key->security == NULL) {
4586 		*_buffer = NULL;
4591 	if (copy == NULL)
4614 	if (key == NULL)
4620 	if (key->security == NULL)
4625 	if (tkp == NULL)
4647  * @cred: The credentials of the event source (may be NULL).
4703 	*rule = NULL;
4870 	if (new_creds == NULL) {
4872 		if (new_creds == NULL)