[PATCH] W1: w1_netlink: New init/fini netlink callbacks.
They are guarded with NETLINK_DISABLE compile time options,
so if CONFIG_NET is disabled, no linking errors occur.
Bug noticed by Adrian Bunk <bunk@stusta.de>.
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/w1/w1_int.c b/drivers/w1/w1_int.c
index 498ad505..2a538d0 100644
--- a/drivers/w1/w1_int.c
+++ b/drivers/w1/w1_int.c
@@ -88,17 +88,14 @@
dev->groups = 1;
dev->seq = 1;
- dev->nls = netlink_kernel_create(NETLINK_W1, 1, NULL, THIS_MODULE);
- if (!dev->nls) {
- printk(KERN_ERR "Failed to create new netlink socket(%u) for w1 master %s.\n",
- NETLINK_NFLOG, dev->dev.bus_id);
- }
+ dev_init_netlink(dev);
err = device_register(&dev->dev);
if (err) {
printk(KERN_ERR "Failed to register master device. err=%d\n", err);
- if (dev->nls && dev->nls->sk_socket)
- sock_release(dev->nls->sk_socket);
+
+ dev_fini_netlink(dev);
+
memset(dev, 0, sizeof(struct w1_master));
kfree(dev);
dev = NULL;
@@ -107,11 +104,10 @@
return dev;
}
-static void w1_free_dev(struct w1_master *dev)
+void w1_free_dev(struct w1_master *dev)
{
device_unregister(&dev->dev);
- if (dev->nls && dev->nls->sk_socket)
- sock_release(dev->nls->sk_socket);
+ dev_fini_netlink(dev);
memset(dev, 0, sizeof(struct w1_master) + sizeof(struct w1_bus_master));
kfree(dev);
}
diff --git a/drivers/w1/w1_netlink.c b/drivers/w1/w1_netlink.c
index e7b7744..328645d 100644
--- a/drivers/w1/w1_netlink.c
+++ b/drivers/w1/w1_netlink.c
@@ -57,10 +57,36 @@
nlmsg_failure:
return;
}
+
+int dev_init_netlink(struct w1_master *dev)
+{
+ dev->nls = netlink_kernel_create(NETLINK_W1, 1, NULL, THIS_MODULE);
+ if (!dev->nls) {
+ printk(KERN_ERR "Failed to create new netlink socket(%u) for w1 master %s.\n",
+ NETLINK_W1, dev->dev.bus_id);
+ }
+
+ return 0;
+}
+
+void dev_fini_netlink(struct w1_master *dev)
+{
+ if (dev->nls && dev->nls->sk_socket)
+ sock_release(dev->nls->sk_socket);
+}
#else
#warning Netlink support is disabled. Please compile with NET support enabled.
void w1_netlink_send(struct w1_master *dev, struct w1_netlink_msg *msg)
{
}
+
+int dev_init_netlink(struct w1_master *dev)
+{
+ return 0;
+}
+
+void dev_fini_netlink(struct w1_master *dev)
+{
+}
#endif
diff --git a/drivers/w1/w1_netlink.h b/drivers/w1/w1_netlink.h
index 8615756..eb0c8b3 100644
--- a/drivers/w1/w1_netlink.h
+++ b/drivers/w1/w1_netlink.h
@@ -52,6 +52,8 @@
#ifdef __KERNEL__
void w1_netlink_send(struct w1_master *, struct w1_netlink_msg *);
+int dev_init_netlink(struct w1_master *dev);
+void dev_fini_netlink(struct w1_master *dev);
#endif /* __KERNEL__ */
#endif /* __W1_NETLINK_H */