static ssize_t
ccwgroup_online_store (struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
struct ccwgroup_device *gdev;
struct ccwgroup_driver *gdrv;
unsigned long value;
int ret;
if (!dev->driver)
return -ENODEV;
gdev = to_ccwgroupdev(dev);
gdrv = to_ccwgroupdrv(dev->driver);
if (!try_module_get(gdrv->owner))
return -EINVAL;
ret = strict_strtoul(buf, 0, &value);
if (ret)
goto out;
if (value == 1)
ret = ccwgroup_set_online(gdev);
else if (value == 0)
ret = ccwgroup_set_offline(gdev);
else
ret = -EINVAL;
out:
module_put(gdrv->owner);
return (ret == 0) ? count : ret;
}
static ssize_t
ccwgroup_online_store (struct device *dev, const char *buf, size_t count)
{
struct ccwgroup_device *gdev;
struct ccwgroup_driver *gdrv;
unsigned int value;
int ret;
gdev = to_ccwgroupdev(dev);
if (!dev->driver)
return count;
gdrv = to_ccwgroupdrv (gdev->dev.driver);
if (!try_module_get(gdrv->owner))
return -EINVAL;
value = simple_strtoul(buf, 0, 0);
ret = count;
if (value == 1)
ccwgroup_set_online(gdev);
else if (value == 0)
ccwgroup_set_offline(gdev);
else
ret = -EINVAL;
module_put(gdrv->owner);
return ret;
}
static ssize_t ccwgroup_online_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct ccwgroup_device *gdev = to_ccwgroupdev(dev);
unsigned long value;
int ret;
device_lock(dev);
if (!dev->driver) {
ret = -EINVAL;
goto out;
}
ret = kstrtoul(buf, 0, &value);
if (ret)
goto out;
if (value == 1)
ret = ccwgroup_set_online(gdev);
else if (value == 0)
ret = ccwgroup_set_offline(gdev);
else
ret = -EINVAL;
out:
device_unlock(dev);
return (ret == 0) ? count : ret;
}
