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[NEIGH]: Cleanup the neigh_sysctl_register 

This mainly removes the err variable, as this call always
return the same error code (-ENOBUFS).

Besides, I moved the call to kmalloc() from the *t declaration
into the code (this is confusing when a variable is initialized
with the result of some call) and removed unneeded comment near
the error path.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov 2007-12-02 00:06:34 +11:00 committed by David S. Miller
parent 1597fbc0fa
commit 3c607bbb47
1 changed files with 11 additions and 15 deletions
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26
net/core/neighbour.c
View File

@ -2652,14 +2652,14 @@ int neigh_sysctl_register(struct net_device *dev, struct neigh_parms *p,
int p_id, int pdev_id, char *p_name,
proc_handler *handler, ctl_handler *strategy)
{
struct neigh_sysctl_table *t = kmemdup(&neigh_sysctl_template,
sizeof(*t), GFP_KERNEL);
struct neigh_sysctl_table *t;
const char *dev_name_source = NULL;
char *dev_name = NULL;
int err = 0;
t = kmemdup(&neigh_sysctl_template, sizeof(*t), GFP_KERNEL);
if (!t)
return -ENOBUFS;
goto err;
t->neigh_vars[0].data = &p->mcast_probes;
t->neigh_vars[1].data = &p->ucast_probes;
t->neigh_vars[2].data = &p->app_probes;
@ -2717,10 +2717,8 @@ int neigh_sysctl_register(struct net_device *dev, struct neigh_parms *p,
}
dev_name = kstrdup(dev_name_source, GFP_KERNEL);
if (!dev_name) {
err = -ENOBUFS;
if (!dev_name)
goto free;
}
t->neigh_dev[0].procname = dev_name;
@ -2735,20 +2733,18 @@ int neigh_sysctl_register(struct net_device *dev, struct neigh_parms *p,
t->neigh_root_dir[0].child = t->neigh_proto_dir;
t->sysctl_header = register_sysctl_table(t->neigh_root_dir);
if (!t->sysctl_header) {
err = -ENOBUFS;
if (!t->sysctl_header)
goto free_procname;
}
p->sysctl_table = t;
return 0;
/* error path */
free_procname:
free_procname:
kfree(dev_name);
free:
free:
kfree(t);
return err;
err:
return -ENOBUFS;
}
void neigh_sysctl_unregister(struct neigh_parms *p)