{
struct device_attribute * dev_attr = to_dev_attr(attr);
struct device * dev = to_dev(kobj);
- ssize_t ret = 0;
+ ssize_t ret = -EIO;
if (dev_attr->show)
ret = dev_attr->show(dev, buf);
{
struct device_attribute * dev_attr = to_dev_attr(attr);
struct device * dev = to_dev(kobj);
- ssize_t ret = 0;
+ ssize_t ret = -EIO;
if (dev_attr->store)
ret = dev_attr->store(dev, buf, count);
INIT_LIST_HEAD(&dev->node);
INIT_LIST_HEAD(&dev->children);
INIT_LIST_HEAD(&dev->driver_list);
- INIT_LIST_HEAD(&dev->bus_list);
INIT_LIST_HEAD(&dev->dma_pools);
+ init_MUTEX(&dev->sem);
}
/**
return error;
}
-/**
- * device_find - locate device on a bus by name.
- * @name: name of the device.
- * @bus: bus to scan for the device.
- *
- * Call kset_find_obj() to iterate over list of devices on
- * a bus to find device by name. Return device if found.
- *
- * Note that kset_find_obj increments device's reference count.
- */
-struct device *device_find(const char *name, struct bus_type *bus)
-{
- struct kobject *k = kset_find_obj(&bus->devices, name);
- if (k)
- return to_dev(k);
- return NULL;
-}
-
int __init devices_init(void)
{
return subsystem_register(&devices_subsys);
EXPORT_SYMBOL_GPL(device_unregister);
EXPORT_SYMBOL_GPL(get_device);
EXPORT_SYMBOL_GPL(put_device);
-EXPORT_SYMBOL_GPL(device_find);
EXPORT_SYMBOL_GPL(device_create_file);
EXPORT_SYMBOL_GPL(device_remove_file);