662 	struct snd_seq_subscribers *subs;  in deliver_to_subscribers()  local
680 	list_for_each_entry(subs, &grp->list_head, src_list) {  in deliver_to_subscribers()
682 		if (atomic_read(&subs->ref_count) != 2)  in deliver_to_subscribers()
684 		event->dest = subs->info.dest;  in deliver_to_subscribers()
685 		if (subs->info.flags & SNDRV_SEQ_PORT_SUBS_TIMESTAMP)  in deliver_to_subscribers()
687 			update_timestamp_of_queue(event, subs->info.queue,  in deliver_to_subscribers()
688 						  subs->info.flags & SNDRV_SEQ_PORT_SUBS_TIME_REAL);  in deliver_to_subscribers()
1393 					 struct snd_seq_port_subscribe *subs)  in check_subscription_permission()  argument
1395 	if (client->number != subs->sender.client &&  in check_subscription_permission()
1396 	    client->number != subs->dest.client) {  in check_subscription_permission()
1408 	if (client->number != subs->sender.client) {  in check_subscription_permission()
1413 	if (client->number != subs->dest.client) {  in check_subscription_permission()
1448 	struct snd_seq_port_subscribe subs;  in snd_seq_ioctl_subscribe_port()  local
1450 	if (copy_from_user(&subs, arg, sizeof(subs)))  in snd_seq_ioctl_subscribe_port()
1453 	if ((receiver = snd_seq_client_use_ptr(subs.dest.client)) == NULL)  in snd_seq_ioctl_subscribe_port()
1455 	if ((sender = snd_seq_client_use_ptr(subs.sender.client)) == NULL)  in snd_seq_ioctl_subscribe_port()
1457 	if ((sport = snd_seq_port_use_ptr(sender, subs.sender.port)) == NULL)  in snd_seq_ioctl_subscribe_port()
1459 	if ((dport = snd_seq_port_use_ptr(receiver, subs.dest.port)) == NULL)  in snd_seq_ioctl_subscribe_port()
1462 	result = check_subscription_permission(client, sport, dport, &subs);  in snd_seq_ioctl_subscribe_port()
1467 	result = snd_seq_port_connect(client, sender, sport, receiver, dport, &subs);  in snd_seq_ioctl_subscribe_port()
1470 						   &subs, SNDRV_SEQ_EVENT_PORT_SUBSCRIBED);  in snd_seq_ioctl_subscribe_port()
1493 	struct snd_seq_port_subscribe subs;  in snd_seq_ioctl_unsubscribe_port()  local
1495 	if (copy_from_user(&subs, arg, sizeof(subs)))  in snd_seq_ioctl_unsubscribe_port()
1498 	if ((receiver = snd_seq_client_use_ptr(subs.dest.client)) == NULL)  in snd_seq_ioctl_unsubscribe_port()
1500 	if ((sender = snd_seq_client_use_ptr(subs.sender.client)) == NULL)  in snd_seq_ioctl_unsubscribe_port()
1502 	if ((sport = snd_seq_port_use_ptr(sender, subs.sender.port)) == NULL)  in snd_seq_ioctl_unsubscribe_port()
1504 	if ((dport = snd_seq_port_use_ptr(receiver, subs.dest.port)) == NULL)  in snd_seq_ioctl_unsubscribe_port()
1507 	result = check_subscription_permission(client, sport, dport, &subs);  in snd_seq_ioctl_unsubscribe_port()
1511 	result = snd_seq_port_disconnect(client, sender, sport, receiver, dport, &subs);  in snd_seq_ioctl_unsubscribe_port()
1514 						   &subs, SNDRV_SEQ_EVENT_PORT_UNSUBSCRIBED);  in snd_seq_ioctl_unsubscribe_port()
1988 	struct snd_seq_port_subscribe subs;  in snd_seq_ioctl_get_subscription()  local
1991 	if (copy_from_user(&subs, arg, sizeof(subs)))  in snd_seq_ioctl_get_subscription()
1995 	if ((sender = snd_seq_client_use_ptr(subs.sender.client)) == NULL)  in snd_seq_ioctl_get_subscription()
1997 	if ((sport = snd_seq_port_use_ptr(sender, subs.sender.port)) == NULL)  in snd_seq_ioctl_get_subscription()
1999 	p = snd_seq_port_get_subscription(&sport->c_src, &subs.dest);  in snd_seq_ioctl_get_subscription()
2002 		subs = p->info;  in snd_seq_ioctl_get_subscription()
2012 		if (copy_to_user(arg, &subs, sizeof(subs)))  in snd_seq_ioctl_get_subscription()
2028 	struct snd_seq_query_subs subs;  in snd_seq_ioctl_query_subs()  local
2033 	if (copy_from_user(&subs, arg, sizeof(subs)))  in snd_seq_ioctl_query_subs()
2036 	if ((cptr = snd_seq_client_use_ptr(subs.root.client)) == NULL)  in snd_seq_ioctl_query_subs()
2038 	if ((port = snd_seq_port_use_ptr(cptr, subs.root.port)) == NULL)  in snd_seq_ioctl_query_subs()
2041 	switch (subs.type) {  in snd_seq_ioctl_query_subs()
2054 	subs.num_subs = group->count;  in snd_seq_ioctl_query_subs()
2058 		if (i++ == subs.index) {  in snd_seq_ioctl_query_subs()
2061 			if (subs.type == SNDRV_SEQ_QUERY_SUBS_READ) {  in snd_seq_ioctl_query_subs()
2063 				subs.addr = s->info.dest;  in snd_seq_ioctl_query_subs()
2066 				subs.addr = s->info.sender;  in snd_seq_ioctl_query_subs()
2068 			subs.flags = s->info.flags;  in snd_seq_ioctl_query_subs()
2069 			subs.queue = s->info.queue;  in snd_seq_ioctl_query_subs()
2082 		if (copy_to_user(arg, &subs, sizeof(subs)))  in snd_seq_ioctl_query_subs()