Phonet: allow phonet_device_init() to fail, put it to __init section

Signed-off-by: NRémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

include/net/phonet/phonet.h

@@ -105,7 +105,6 @@ void phonet_proto_unregister(int protocol, struct phonet_protocol *pp);
 
 int phonet_sysctl_init(void);
 void phonet_sysctl_exit(void);
-void phonet_netlink_register(void);
 int isi_register(void);
 void isi_unregister(void);
 

include/net/phonet/pn_dev.h

@@ -36,8 +36,9 @@ struct phonet_device {
 	DECLARE_BITMAP(addrs, 64);
 };
 
-void phonet_device_init(void);
+int phonet_device_init(void);
 void phonet_device_exit(void);
+void phonet_netlink_register(void);
 struct net_device *phonet_device_get(struct net *net);
 
 int phonet_address_add(struct net_device *dev, u8 addr);

net/phonet/af_phonet.c

@@ -426,16 +426,18 @@ static int __init phonet_init(void)
 {
 	int err;
 
+	err = phonet_device_init();
+	if (err)
+		return err;
+
 	err = sock_register(&phonet_proto_family);
 	if (err) {
 		printk(KERN_ALERT
 			"phonet protocol family initialization failed\n");
-		return err;
+		goto err_sock;
 	}
 
-	phonet_device_init();
 	dev_add_pack(&phonet_packet_type);
-	phonet_netlink_register();
 	phonet_sysctl_init();
 
 	err = isi_register();
@@ -447,6 +449,7 @@ static int __init phonet_init(void)
 	phonet_sysctl_exit();
 	sock_unregister(PF_PHONET);
 	dev_remove_pack(&phonet_packet_type);
+err_sock:
 	phonet_device_exit();
 	return err;
 }

net/phonet/pn_dev.c

@@ -188,9 +188,11 @@ static struct notifier_block phonet_device_notifier = {
 };
 
 /* Initialize Phonet devices list */
-void phonet_device_init(void)
+int __init phonet_device_init(void)
 {
 	register_netdevice_notifier(&phonet_device_notifier);
+	phonet_netlink_register();
+	return 0;
 }
 
 void phonet_device_exit(void)