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authorfrank.blaschka@de.ibm.com <frank.blaschka@de.ibm.com>2012-07-25 02:34:28 +0400
committerDavid S. Miller <davem@davemloft.net>2012-07-26 02:24:13 +0400
commit0b945293c4fa89347b295ccb355e5faad1585039 (patch)
treea149bf30858869e50ea17f85dfaf664a71b2abb1 /drivers/s390
parent9fafbd4d5f97dfbabe0650a920f7a33b0b71b5d0 (diff)
downloadlinux-0b945293c4fa89347b295ccb355e5faad1585039.tar.xz
netiucv: cleanup attribute usage
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>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/net/netiucv.c34
1 files changed, 6 insertions, 28 deletions
diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c
index 8160591913f9..4ffa66c87ea5 100644
--- a/drivers/s390/net/netiucv.c
+++ b/drivers/s390/net/netiucv.c
@@ -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);
}