98 	const struct can_proto *cp;  in can_get_proto()  local
101 	cp = rcu_dereference(proto_tab[protocol]);  in can_get_proto()
102 	if (cp && !try_module_get(cp->prot->owner))  in can_get_proto()
103 		cp = NULL;  in can_get_proto()
106 	return cp;  in can_get_proto()
109 static inline void can_put_proto(const struct can_proto *cp)  in can_put_proto()  argument
111 	module_put(cp->prot->owner);  in can_put_proto()
118 	const struct can_proto *cp;  in can_create()  local
126 	cp = can_get_proto(protocol);  in can_create()
129 	if (!cp) {  in can_create()
142 		cp = can_get_proto(protocol);  in can_create()
148 	if (!cp)  in can_create()
151 	if (cp->type != sock->type) {  in can_create()
156 	sock->ops = cp->ops;  in can_create()
158 	sk = sk_alloc(net, PF_CAN, GFP_KERNEL, cp->prot, kern);  in can_create()
177 	can_put_proto(cp);  in can_create()
740 int can_proto_register(const struct can_proto *cp)  in can_proto_register()  argument
742 	int proto = cp->protocol;  in can_proto_register()
750 	err = proto_register(cp->prot, 0);  in can_proto_register()
760 		RCU_INIT_POINTER(proto_tab[proto], cp);  in can_proto_register()
766 		proto_unregister(cp->prot);  in can_proto_register()
776 void can_proto_unregister(const struct can_proto *cp)  in can_proto_unregister()  argument
778 	int proto = cp->protocol;  in can_proto_unregister()
781 	BUG_ON(rcu_access_pointer(proto_tab[proto]) != cp);  in can_proto_unregister()
787 	proto_unregister(cp->prot);  in can_proto_unregister()