iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

netiucv: cleanup attribute usage

Browse Source 
Let the driver core handle device attribute creation and removal. This
will simplify the code and eliminates races between attribute
availability and userspace notification via uevents.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Acked-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
frank.blaschka@de.ibm.com 2012-07-24 22:34:28 +00:00 committed by David S. Miller
parent 9fafbd4d5f
commit 0b945293c4
1 changed files with 6 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
drivers/s390/net/netiucv.c
View File

@ -1854,26 +1854,11 @@ static struct attribute_group netiucv_stat_attr_group = {
.attrs = netiucv_stat_attrs,
};
static int netiucv_add_files(struct device *dev)
{
int ret;
IUCV_DBF_TEXT(trace, 3, __func__);
ret = sysfs_create_group(&dev->kobj, &netiucv_attr_group);
if (ret)
return ret;
ret = sysfs_create_group(&dev->kobj, &netiucv_stat_attr_group);
if (ret)
sysfs_remove_group(&dev->kobj, &netiucv_attr_group);
return ret;
}
static void netiucv_remove_files(struct device *dev)
{
IUCV_DBF_TEXT(trace, 3, __func__);
sysfs_remove_group(&dev->kobj, &netiucv_stat_attr_group);
sysfs_remove_group(&dev->kobj, &netiucv_attr_group);
}
static const struct attribute_group *netiucv_attr_groups[] = {
&netiucv_stat_attr_group,
&netiucv_attr_group,
NULL,
};
static int netiucv_register_device(struct net_device *ndev)
{
@ -1887,6 +1872,7 @@ static int netiucv_register_device(struct net_device *ndev)
dev_set_name(dev, "net%s", ndev->name);
dev->bus = &iucv_bus;
dev->parent = iucv_root;
dev->groups = netiucv_attr_groups;
/*
* The release function could be called after the
* module has been unloaded. It's _only_ task is to
@ -1904,22 +1890,14 @@ static int netiucv_register_device(struct net_device *ndev)
put_device(dev);
return ret;
}
ret = netiucv_add_files(dev);
if (ret)
goto out_unreg;
priv->dev = dev;
dev_set_drvdata(dev, priv);
return 0;
out_unreg:
device_unregister(dev);
return ret;
}
static void netiucv_unregister_device(struct device *dev)
{
IUCV_DBF_TEXT(trace, 3, __func__);
netiucv_remove_files(dev);
device_unregister(dev);
}