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[PATCH] W1: w1_netlink: New init/fini netlink callbacks.

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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>
This commit is contained in:
Evgeniy Polyakov 2005-07-27 13:10:11 +04:00 committed by Greg Kroah-Hartman
parent 1b11d78cf8
commit 2d8331792e
3 changed files with 34 additions and 10 deletions
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16
drivers/w1/w1_int.c
View file

@ -88,17 +88,14 @@ static struct w1_master * w1_alloc_dev(u32 id, int slave_count, int slave_ttl,
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 @@ static struct w1_master * w1_alloc_dev(u32 id, int slave_count, int slave_ttl,
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);
}

26
drivers/w1/w1_netlink.c
View file

@ -57,10 +57,36 @@ void w1_netlink_send(struct w1_master *dev, struct w1_netlink_msg *msg)
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

2
drivers/w1/w1_netlink.h
View file

@ -52,6 +52,8 @@ struct w1_netlink_msg
#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 */