#include <linux/device.h>
#include <linux/module.h>
#include <linux/errno.h>
+#include <linux/slab.h>
#include <linux/string.h>
#include "base.h"
static struct device *next_device(struct klist_iter *i)
{
struct klist_node *n = klist_next(i);
- return n ? container_of(n, struct device, knode_driver) : NULL;
+ struct device *dev = NULL;
+ struct device_private *dev_prv;
+
+ if (n) {
+ dev_prv = to_device_private_driver(n);
+ dev = dev_prv->device;
+ }
+ return dev;
}
/**
return -EINVAL;
klist_iter_init_node(&drv->p->klist_devices, &i,
- start ? &start->knode_driver : NULL);
+ start ? &start->p->knode_driver : NULL);
while ((dev = next_device(&i)) && !error)
error = fn(dev, data);
klist_iter_exit(&i);
return NULL;
klist_iter_init_node(&drv->p->klist_devices, &i,
- (start ? &start->knode_driver : NULL));
+ (start ? &start->p->knode_driver : NULL));
while ((dev = next_device(&i)))
if (match(dev, data) && get_device(dev))
break;
* @attr: driver attribute descriptor.
*/
int driver_create_file(struct device_driver *drv,
- struct driver_attribute *attr)
+ const struct driver_attribute *attr)
{
int error;
if (drv)
* @attr: driver attribute descriptor.
*/
void driver_remove_file(struct device_driver *drv,
- struct driver_attribute *attr)
+ const struct driver_attribute *attr)
{
if (drv)
sysfs_remove_file(&drv->p->kobj, &attr->attr);
EXPORT_SYMBOL_GPL(put_driver);
static int driver_add_groups(struct device_driver *drv,
- struct attribute_group **groups)
+ const struct attribute_group **groups)
{
int error = 0;
int i;
}
static void driver_remove_groups(struct device_driver *drv,
- struct attribute_group **groups)
+ const struct attribute_group **groups)
{
int i;
put_driver(other);
printk(KERN_ERR "Error: Driver '%s' is already registered, "
"aborting...\n", drv->name);
- return -EEXIST;
+ return -EBUSY;
}
ret = bus_add_driver(drv);
*/
void driver_unregister(struct device_driver *drv)
{
+ if (!drv || !drv->p) {
+ WARN(1, "Unexpected driver unregister!\n");
+ return;
+ }
driver_remove_groups(drv, drv->groups);
bus_remove_driver(drv);
}