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platform_kernel-5.15
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Code Issues Projects Releases Wiki Activity

Driver core: coding style fixes 

Fix up a number of coding style issues in the drivers/base/ directory
that have annoyed me over the years.  checkpatch.pl is now very happy.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman 2008-01-24 22:50:12 -08:00
parent e374a2bfeb
commit 4a3ad20ccd
8 changed files with 545 additions and 583 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/base/base.h
View File

@ -54,11 +54,11 @@ extern int bus_add_device(struct device * dev);
extern void bus_attach_device(struct device *dev);
extern void bus_remove_device(struct device *dev);
extern int bus_add_driver(struct device_driver *);
extern void bus_remove_driver(struct device_driver *);
extern int bus_add_driver(struct device_driver *drv);
extern void bus_remove_driver(struct device_driver *drv);
extern void driver_detach(struct device_driver *drv);
extern int driver_probe_device(struct device_driver *, struct device *);
extern int driver_probe_device(struct device_driver *drv, struct device *dev);
extern void sysdev_shutdown(void);
extern int sysdev_suspend(pm_message_t state);

78
drivers/base/bus.c
View File

@ -46,8 +46,8 @@ static void bus_put(struct bus_type *bus)
kset_put(&bus->p->subsys);
}
static ssize_t
drv_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
static ssize_t drv_attr_show(struct kobject *kobj, struct attribute *attr,
char *buf)
{
struct driver_attribute *drv_attr = to_drv_attr(attr);
struct driver_private *drv_priv = to_driver(kobj);
@ -58,8 +58,7 @@ drv_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
return ret;
}
static ssize_t
drv_attr_store(struct kobject * kobj, struct attribute * attr,
static ssize_t drv_attr_store(struct kobject *kobj, struct attribute *attr,
const char *buf, size_t count)
{
struct driver_attribute *drv_attr = to_drv_attr(attr);
@ -89,14 +88,11 @@ static struct kobj_type driver_ktype = {
.release = driver_release,
};
/*
* sysfs bindings for buses
*/
static ssize_t
bus_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
static ssize_t bus_attr_show(struct kobject *kobj, struct attribute *attr,
char *buf)
{
struct bus_attribute *bus_attr = to_bus_attr(attr);
struct bus_type_private *bus_priv = to_bus(kobj);
@ -107,8 +103,7 @@ bus_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
return ret;
}
static ssize_t
bus_attr_store(struct kobject * kobj, struct attribute * attr,
static ssize_t bus_attr_store(struct kobject *kobj, struct attribute *attr,
const char *buf, size_t count)
{
struct bus_attribute *bus_attr = to_bus_attr(attr);
@ -135,6 +130,7 @@ int bus_create_file(struct bus_type * bus, struct bus_attribute * attr)
error = -EINVAL;
return error;
}
EXPORT_SYMBOL_GPL(bus_create_file);
void bus_remove_file(struct bus_type *bus, struct bus_attribute *attr)
{
@ -143,6 +139,7 @@ void bus_remove_file(struct bus_type * bus, struct bus_attribute * attr)
bus_put(bus);
}
}
EXPORT_SYMBOL_GPL(bus_remove_file);
static struct kobj_type bus_ktype = {
.sysfs_ops = &bus_sysfs_ops,
@ -219,11 +216,14 @@ static ssize_t driver_bind(struct device_driver *drv,
if (dev->parent)
up(&dev->parent->sem);
if (err > 0) /* success */
if (err > 0) {
/* success */
err = count;
else if (err == 0) /* driver didn't accept device */
} else if (err == 0) {
/* driver didn't accept device */
err = -ENODEV;
}
}
put_device(dev);
bus_put(bus);
return err;
@ -284,7 +284,6 @@ static struct device * next_device(struct klist_iter * i)
* to retain this data, it should do, and increment the reference
* count in the supplied callback.
*/
int bus_for_each_dev(struct bus_type *bus, struct device *start,
void *data, int (*fn)(struct device *, void *))
{
@ -302,6 +301,7 @@ int bus_for_each_dev(struct bus_type * bus, struct device * start,
klist_iter_exit(&i);
return error;
}
EXPORT_SYMBOL_GPL(bus_for_each_dev);
/**
* bus_find_device - device iterator for locating a particular device.
@ -320,7 +320,7 @@ int bus_for_each_dev(struct bus_type * bus, struct device * start,
*/
struct device *bus_find_device(struct bus_type *bus,
struct device *start, void *data,
int (*match)(struct device *, void *))
int (*match)(struct device *dev, void *data))
{
struct klist_iter i;
struct device *dev;
@ -336,7 +336,7 @@ struct device * bus_find_device(struct bus_type *bus,
klist_iter_exit(&i);
return dev;
}
EXPORT_SYMBOL_GPL(bus_find_device);
static struct device_driver *next_driver(struct klist_iter *i)
{
@ -369,7 +369,6 @@ static struct device_driver * next_driver(struct klist_iter * i)
* in the callback. It must also be sure to increment the refcount
* so it doesn't disappear before returning to the caller.
*/
int bus_for_each_drv(struct bus_type *bus, struct device_driver *start,
void *data, int (*fn)(struct device_driver *, void *))
{
@ -387,6 +386,7 @@ int bus_for_each_drv(struct bus_type * bus, struct device_driver * start,
klist_iter_exit(&i);
return error;
}
EXPORT_SYMBOL_GPL(bus_for_each_drv);
static int device_add_attrs(struct bus_type *bus, struct device *dev)
{
@ -513,13 +513,15 @@ void bus_remove_device(struct device * dev)
if (dev->bus) {
sysfs_remove_link(&dev->kobj, "subsystem");
remove_deprecated_bus_links(dev);
sysfs_remove_link(&dev->bus->p->devices_kset->kobj, dev->bus_id);
sysfs_remove_link(&dev->bus->p->devices_kset->kobj,
dev->bus_id);
device_remove_attrs(dev->bus, dev);
if (dev->is_registered) {
dev->is_registered = 0;
klist_del(&dev->knode_bus);
}
pr_debug("bus: '%s': remove device %s\n", dev->bus->name, dev->bus_id);
pr_debug("bus: '%s': remove device %s\n",
dev->bus->name, dev->bus_id);
device_release_driver(dev);
bus_put(dev->bus);
}
@ -534,19 +536,19 @@ static int driver_add_attrs(struct bus_type * bus, struct device_driver * drv)
for (i = 0; attr_name(bus->drv_attrs[i]); i++) {
error = driver_create_file(drv, &bus->drv_attrs[i]);
if (error)
goto Err;
goto err;
}
}
Done:
done:
return error;
Err:
err:
while (--i >= 0)
driver_remove_file(drv, &bus->drv_attrs[i]);
goto Done;
goto done;
}
static void driver_remove_attrs(struct bus_type * bus, struct device_driver * drv)
static void driver_remove_attrs(struct bus_type *bus,
struct device_driver *drv)
{
int i;
@ -625,7 +627,6 @@ static DRIVER_ATTR(uevent, S_IWUSR, NULL, driver_uevent_store);
/**
* bus_add_driver - Add a driver to the bus.
* @drv: driver.
*
*/
int bus_add_driver(struct device_driver *drv)
{
@ -695,7 +696,6 @@ int bus_add_driver(struct device_driver *drv)
* it from its bus's list of drivers. Finally, we drop the reference
* to the bus we took in bus_add_driver().
*/
void bus_remove_driver(struct device_driver *drv)
{
if (!drv->bus)
@ -712,7 +712,6 @@ void bus_remove_driver(struct device_driver * drv)
bus_put(drv->bus);
}
/* Helper for bus_rescan_devices's iter */
static int __must_check bus_rescan_devices_helper(struct device *dev,
void *data)
@ -741,6 +740,7 @@ int bus_rescan_devices(struct bus_type * bus)
{
return bus_for_each_dev(bus, NULL, NULL, bus_rescan_devices_helper);
}
EXPORT_SYMBOL_GPL(bus_rescan_devices);
/**
* device_reprobe - remove driver for a device and probe for a new driver
@ -796,15 +796,15 @@ static int bus_add_attrs(struct bus_type * bus)
for (i = 0; attr_name(bus->bus_attrs[i]); i++) {
error = bus_create_file(bus, &bus->bus_attrs[i]);
if (error)
goto Err;
goto err;
}
}
Done:
done:
return error;
Err:
err:
while (--i >= 0)
bus_remove_file(bus, &bus->bus_attrs[i]);
goto Done;
goto done;
}
static void bus_remove_attrs(struct bus_type *bus)
@ -922,6 +922,7 @@ int bus_register(struct bus_type * bus)
out:
return retval;
}
EXPORT_SYMBOL_GPL(bus_register);
/**
* bus_unregister - remove a bus from the system
@ -941,6 +942,7 @@ void bus_unregister(struct bus_type * bus)
kset_unregister(&bus->p->subsys);
kfree(bus->p);
}
EXPORT_SYMBOL_GPL(bus_unregister);
int bus_register_notifier(struct bus_type *bus, struct notifier_block *nb)
{
@ -973,15 +975,3 @@ int __init buses_init(void)
return -ENOMEM;
return 0;
}
EXPORT_SYMBOL_GPL(bus_for_each_dev);
EXPORT_SYMBOL_GPL(bus_find_device);
EXPORT_SYMBOL_GPL(bus_for_each_drv);
EXPORT_SYMBOL_GPL(bus_register);
EXPORT_SYMBOL_GPL(bus_unregister);
EXPORT_SYMBOL_GPL(bus_rescan_devices);
EXPORT_SYMBOL_GPL(bus_create_file);
EXPORT_SYMBOL_GPL(bus_remove_file);

62
drivers/base/class.c
View File

@ -23,8 +23,8 @@
#define to_class_attr(_attr) container_of(_attr, struct class_attribute, attr)
#define to_class(obj) container_of(obj, struct class, subsys.kobj)
static ssize_t
class_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
static ssize_t class_attr_show(struct kobject *kobj, struct attribute *attr,
char *buf)
{
struct class_attribute *class_attr = to_class_attr(attr);
struct class *dc = to_class(kobj);
@ -35,8 +35,7 @@ class_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
return ret;
}
static ssize_t
class_attr_store(struct kobject * kobj, struct attribute * attr,
static ssize_t class_attr_store(struct kobject *kobj, struct attribute *attr,
const char *buf, size_t count)
{
struct class_attribute *class_attr = to_class_attr(attr);
@ -78,9 +77,9 @@ static struct kset *class_kset;
int class_create_file(struct class *cls, const struct class_attribute *attr)
{
int error;
if (cls) {
if (cls)
error = sysfs_create_file(&cls->subsys.kobj, &attr->attr);
} else
else
error = -EINVAL;
return error;
}
@ -94,7 +93,8 @@ void class_remove_file(struct class * cls, const struct class_attribute * attr)
static struct class *class_get(struct class *cls)
{
if (cls)
return container_of(kset_get(&cls->subsys), struct class, subsys);
return container_of(kset_get(&cls->subsys),
struct class, subsys);
return NULL;
}
@ -104,7 +104,6 @@ static void class_put(struct class * cls)
kset_put(&cls->subsys);
}
static int add_class_attrs(struct class *cls)
{
int i;
@ -114,15 +113,15 @@ static int add_class_attrs(struct class * cls)
for (i = 0; attr_name(cls->class_attrs[i]); i++) {
error = class_create_file(cls, &cls->class_attrs[i]);
if (error)
goto Err;
goto error;
}
}
Done:
done:
return error;
Err:
error:
while (--i >= 0)
class_remove_file(cls, &cls->class_attrs[i]);
goto Done;
goto done;
}
static void remove_class_attrs(struct class *cls)
@ -281,9 +280,8 @@ void class_device_remove_bin_file(struct class_device *class_dev,
sysfs_remove_bin_file(&class_dev->kobj, attr);
}
static ssize_t
class_device_attr_show(struct kobject * kobj, struct attribute * attr,
char * buf)
static ssize_t class_device_attr_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
struct class_device_attribute *class_dev_attr = to_class_dev_attr(attr);
struct class_device *cd = to_class_dev(kobj);
@ -294,8 +292,8 @@ class_device_attr_show(struct kobject * kobj, struct attribute * attr,
return ret;
}
static ssize_t
class_device_attr_store(struct kobject * kobj, struct attribute * attr,
static ssize_t class_device_attr_store(struct kobject *kobj,
struct attribute *attr,
const char *buf, size_t count)
{
struct class_device_attribute *class_dev_attr = to_class_dev_attr(attr);
@ -324,8 +322,8 @@ static void class_dev_release(struct kobject * kobj)
else if (cls->release)
cls->release(cd);
else {
printk(KERN_ERR "Class Device '%s' does not have a release() function, "
"it is broken and must be fixed.\n",
printk(KERN_ERR "Class Device '%s' does not have a release() "
"function, it is broken and must be fixed.\n",
cd->class_id);
WARN_ON(1);
}
@ -436,7 +434,8 @@ static int class_uevent(struct kset *kset, struct kobject *kobj,
add_uevent_var(env, "PHYSDEVBUS=%s", dev->bus->name);
if (dev->driver)
add_uevent_var(env, "PHYSDEVDRIVER=%s", dev->driver->name);
add_uevent_var(env, "PHYSDEVDRIVER=%s",
dev->driver->name);
}
if (class_dev->uevent) {
@ -480,15 +479,15 @@ static int class_device_add_attrs(struct class_device * cd)
error = class_device_create_file(cd,
&cls->class_dev_attrs[i]);
if (error)
goto Err;
goto err;
}
}
Done:
done:
return error;
Err:
err:
while (--i >= 0)
class_device_remove_file(cd, &cls->class_dev_attrs[i]);
goto Done;
goto done;
}
static void class_device_remove_attrs(struct class_device *cd)
@ -512,7 +511,8 @@ static int class_device_add_groups(struct class_device * cd)
error = sysfs_create_group(&cd->kobj, cd->groups[i]);
if (error) {
while (--i >= 0)
sysfs_remove_group(&cd->kobj, cd->groups[i]);
sysfs_remove_group(&cd->kobj,
cd->groups[i]);
goto out;
}
}
@ -524,12 +524,10 @@ static int class_device_add_groups(struct class_device * cd)
static void class_device_remove_groups(struct class_device *cd)
{
int i;
if (cd->groups) {
for (i = 0; cd->groups[i]; i++) {
if (cd->groups)
for (i = 0; cd->groups[i]; i++)
sysfs_remove_group(&cd->kobj, cd->groups[i]);
}
}
}
static ssize_t show_dev(struct class_device *class_dev, char *buf)
{
@ -670,9 +668,11 @@ int class_device_register(struct class_device *class_dev)
/**
* class_device_create - creates a class device and registers it with sysfs
* @cls: pointer to the struct class that this device should be registered to.
* @parent: pointer to the parent struct class_device of this new device, if any.
* @parent: pointer to the parent struct class_device of this new device, if
* any.
* @devt: the dev_t for the char device to be added.
* @device: a pointer to a struct device that is assiociated with this class device.
* @device: a pointer to a struct device that is assiociated with this class
* device.
* @fmt: string for the class device's name
*
* This function can be used by char device classes. A struct

37
drivers/base/core.c
View File

@ -51,8 +51,8 @@ EXPORT_SYMBOL(dev_driver_string);
#define to_dev(obj) container_of(obj, struct device, kobj)
#define to_dev_attr(_attr) container_of(_attr, struct device_attribute, attr)
static ssize_t
dev_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
static ssize_t dev_attr_show(struct kobject *kobj, struct attribute *attr,
char *buf)
{
struct device_attribute *dev_attr = to_dev_attr(attr);
struct device *dev = to_dev(kobj);
@ -63,8 +63,7 @@ dev_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
return ret;
}
static ssize_t
dev_attr_store(struct kobject * kobj, struct attribute * attr,
static ssize_t dev_attr_store(struct kobject *kobj, struct attribute *attr,
const char *buf, size_t count)
{
struct device_attribute *dev_attr = to_dev_attr(attr);
@ -101,8 +100,8 @@ static void device_release(struct kobject * kobj)
else if (dev->class && dev->class->dev_release)
dev->class->dev_release(dev);
else {
printk(KERN_ERR "Device '%s' does not have a release() function, "
"it is broken and must be fixed.\n",
printk(KERN_ERR "Device '%s' does not have a release() "
"function, it is broken and must be fixed.\n",
dev->bus_id);
WARN_ON(1);
}
@ -185,7 +184,8 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj,
add_uevent_var(env, "PHYSDEVBUS=%s", dev->bus->name);
if (dev->driver)
add_uevent_var(env, "PHYSDEVDRIVER=%s", dev->driver->name);
add_uevent_var(env, "PHYSDEVDRIVER=%s",
dev->driver->name);
}
#endif
@ -327,7 +327,8 @@ static int device_add_groups(struct device *dev,
error = sysfs_create_group(&dev->kobj, groups[i]);
if (error) {
while (--i >= 0)
sysfs_remove_group(&dev->kobj, groups[i]);
sysfs_remove_group(&dev->kobj,
groups[i]);
break;
}
}
@ -406,13 +407,11 @@ static struct device_attribute devt_attr =
/* kset to create /sys/devices/ */
struct kset *devices_kset;
/**
* device_create_file - create sysfs attribute file for device.
* @dev: device.
* @attr: device attribute descriptor.
*/
int device_create_file(struct device *dev, struct device_attribute *attr)
{
int error = 0;
@ -428,7 +427,6 @@ int device_create_file(struct device * dev, struct device_attribute * attr)
* @dev: device.
* @attr: device attribute descriptor.
*/
void device_remove_file(struct device *dev, struct device_attribute *attr)
{
if (get_device(dev)) {
@ -510,7 +508,6 @@ static void klist_children_put(struct klist_node *n)
put_device(dev);
}
/**
* device_initialize - init device structure.
* @dev: device.
@ -521,7 +518,6 @@ static void klist_children_put(struct klist_node *n)
* that, though it can also be called separately, so one
* may use @dev's fields (e.g. the refcount).
*/
void device_initialize(struct device *dev)
{
dev->kobj.kset = devices_kset;
@ -870,7 +866,6 @@ int device_add(struct device *dev)
goto Done;
}
/**
* device_register - register a device with the system.
* @dev: pointer to the device structure
@ -882,14 +877,12 @@ int device_add(struct device *dev)
* have a clearly defined need to use and refcount the device
* before it is added to the hierarchy.
*/
int device_register(struct device *dev)
{
device_initialize(dev);
return device_add(dev);
}
/**
* get_device - increment reference count for device.
* @dev: device.
@ -898,13 +891,11 @@ int device_register(struct device *dev)
* we do take care to provide for the case that we get a NULL
* pointer passed in.
*/
struct device *get_device(struct device *dev)
{
return dev ? to_dev(kobject_get(&dev->kobj)) : NULL;
}
/**
* put_device - decrement reference count.
* @dev: device in question.
@ -916,7 +907,6 @@ void put_device(struct device * dev)
kobject_put(&dev->kobj);
}
/**
* device_del - delete device from system.
* @dev: device.
@ -930,7 +920,6 @@ void put_device(struct device * dev)
* NOTE: this should be called manually _iff_ device_add() was
* also called manually.
*/
void device_del(struct device *dev)
{
struct device *parent = dev->parent;
@ -996,7 +985,6 @@ void device_unregister(struct device * dev)
put_device(dev);
}
static struct device *next_device(struct klist_iter *i)
{
struct klist_node *n = klist_next(i);
@ -1016,7 +1004,7 @@ static struct device * next_device(struct klist_iter * i)
* other than 0, we break out and return that value.
*/
int device_for_each_child(struct device *parent, void *data,
int (*fn)(struct device *, void *))
int (*fn)(struct device *dev, void *data))
{
struct klist_iter i;
struct device *child;
@ -1045,7 +1033,7 @@ int device_for_each_child(struct device * parent, void * data,
* and not iterate over any more devices.
*/
struct device *device_find_child(struct device *parent, void *data,
int (*match)(struct device *, void *))
int (*match)(struct device *dev, void *data))
{
struct klist_iter i;
struct device *child;
@ -1312,8 +1300,7 @@ static int device_move_class_links(struct device *dev,
class_name);
if (error)
sysfs_remove_link(&dev->kobj, "device");
}
else
} else
error = 0;
out:
kfree(class_name);

11
drivers/base/dd.c
View File

@ -93,6 +93,7 @@ int device_bind_driver(struct device *dev)
driver_bound(dev);
return ret;
}
EXPORT_SYMBOL_GPL(device_bind_driver);
static atomic_t probe_count = ATOMIC_INIT(0);
static DECLARE_WAIT_QUEUE_HEAD(probe_waitqueue);
@ -240,6 +241,7 @@ int device_attach(struct device * dev)
up(&dev->sem);
return ret;
}
EXPORT_SYMBOL_GPL(device_attach);
static int __driver_attach(struct device *dev, void *data)
{
@ -280,6 +282,7 @@ int driver_attach(struct device_driver * drv)
{
return bus_for_each_dev(drv->bus, NULL, drv, __driver_attach);
}
EXPORT_SYMBOL_GPL(driver_attach);
/*
* __device_release_driver() must be called with @dev->sem held.
@ -327,7 +330,7 @@ void device_release_driver(struct device * dev)
__device_release_driver(dev);
up(&dev->sem);
}
EXPORT_SYMBOL_GPL(device_release_driver);
/**
* driver_detach - detach driver from all devices it controls.
@ -359,9 +362,3 @@ void driver_detach(struct device_driver * drv)
put_device(dev);
}
}
EXPORT_SYMBOL_GPL(device_bind_driver);
EXPORT_SYMBOL_GPL(device_release_driver);
EXPORT_SYMBOL_GPL(device_attach);
EXPORT_SYMBOL_GPL(driver_attach);

38
drivers/base/driver.c
View File

@ -34,7 +34,6 @@ static struct device * next_device(struct klist_iter * i)
*
* Iterate over the @drv's list of devices calling @fn for each one.
*/
int driver_for_each_device(struct device_driver *drv, struct device *start,
void *data, int (*fn)(struct device *, void *))
{
@ -52,10 +51,8 @@ int driver_for_each_device(struct device_driver * drv, struct device * start,
klist_iter_exit(&i);
return error;
}
EXPORT_SYMBOL_GPL(driver_for_each_device);
/**
* driver_find_device - device iterator for locating a particular device.
* @drv: The device's driver
@ -73,7 +70,7 @@ EXPORT_SYMBOL_GPL(driver_for_each_device);
*/
struct device *driver_find_device(struct device_driver *drv,
struct device *start, void *data,
int (*match)(struct device *, void *))
int (*match)(struct device *dev, void *data))
{
struct klist_iter i;
struct device *dev;
@ -96,8 +93,8 @@ EXPORT_SYMBOL_GPL(driver_find_device);
* @drv: driver.
* @attr: driver attribute descriptor.
*/
int driver_create_file(struct device_driver * drv, struct driver_attribute * attr)
int driver_create_file(struct device_driver *drv,
struct driver_attribute *attr)
{
int error;
if (get_driver(drv)) {
@ -107,22 +104,22 @@ int driver_create_file(struct device_driver * drv, struct driver_attribute * att
error = -EINVAL;
return error;
}
EXPORT_SYMBOL_GPL(driver_create_file);
/**
* driver_remove_file - remove sysfs file for driver.
* @drv: driver.
* @attr: driver attribute descriptor.
*/
void driver_remove_file(struct device_driver * drv, struct driver_attribute * attr)
void driver_remove_file(struct device_driver *drv,
struct driver_attribute *attr)
{
if (get_driver(drv)) {
sysfs_remove_file(&drv->p->kobj, &attr->attr);
put_driver(drv);
}
}
EXPORT_SYMBOL_GPL(driver_remove_file);
/**
* driver_add_kobj - add a kobject below the specified driver
@ -164,7 +161,7 @@ struct device_driver * get_driver(struct device_driver * drv)
}
return NULL;
}
EXPORT_SYMBOL_GPL(get_driver);
/**
* put_driver - decrement driver's refcount.
@ -174,6 +171,7 @@ void put_driver(struct device_driver * drv)
{
kobject_put(&drv->p->kobj);
}
EXPORT_SYMBOL_GPL(put_driver);
static int driver_add_groups(struct device_driver *drv,
struct attribute_group **groups)
@ -205,7 +203,6 @@ static void driver_remove_groups(struct device_driver *drv,
sysfs_remove_group(&drv->p->kobj, groups[i]);
}
/**
* driver_register - register driver with bus
* @drv: driver to register
@ -220,9 +217,9 @@ int driver_register(struct device_driver * drv)
if ((drv->bus->probe && drv->probe) ||
(drv->bus->remove && drv->remove) ||
(drv->bus->shutdown && drv->shutdown)) {
printk(KERN_WARNING "Driver '%s' needs updating - please use bus_type methods\n", drv->name);
}
(drv->bus->shutdown && drv->shutdown))
printk(KERN_WARNING "Driver '%s' needs updating - please use "
"bus_type methods\n", drv->name);
ret = bus_add_driver(drv);
if (ret)
return ret;
@ -231,6 +228,7 @@ int driver_register(struct device_driver * drv)
bus_remove_driver(drv);
return ret;
}
EXPORT_SYMBOL_GPL(driver_register);
/**
* driver_unregister - remove driver from system.
@ -238,12 +236,12 @@ int driver_register(struct device_driver * drv)
*
* Again, we pass off most of the work to the bus-level call.
*/
void driver_unregister(struct device_driver *drv)
{
driver_remove_groups(drv, drv->groups);
bus_remove_driver(drv);
}
EXPORT_SYMBOL_GPL(driver_unregister);
/**
* driver_find - locate driver on a bus by its name.
@ -266,12 +264,4 @@ struct device_driver *driver_find(const char *name, struct bus_type *bus)
}
return NULL;
}
EXPORT_SYMBOL_GPL(driver_register);
EXPORT_SYMBOL_GPL(driver_unregister);
EXPORT_SYMBOL_GPL(get_driver);
EXPORT_SYMBOL_GPL(put_driver);
EXPORT_SYMBOL_GPL(driver_find);
EXPORT_SYMBOL_GPL(driver_create_file);
EXPORT_SYMBOL_GPL(driver_remove_file);

3
drivers/base/init.c
View File

@ -1,10 +1,8 @@
/*
*
* Copyright (c) 2002-3 Patrick Mochel
* Copyright (c) 2002-3 Open Source Development Labs
*
* This file is released under the GPLv2
*
*/
#include <linux/device.h>
@ -19,7 +17,6 @@
* Call the driver model init functions to initialize their
* subsystems. Called early from init/main.c.
*/
void __init driver_init(void)
{
/* These are the core pieces */

103
drivers/base/platform.c
View File

@ -20,7 +20,8 @@
#include "base.h"
#define to_platform_driver(drv) (container_of((drv), struct platform_driver, driver))
#define to_platform_driver(drv) (container_of((drv), struct platform_driver, \
driver))
struct device platform_bus = {
.bus_id = "platform",
@ -33,9 +34,8 @@ EXPORT_SYMBOL_GPL(platform_bus);
* @type: resource type
* @num: resource index
*/
struct resource *
platform_get_resource(struct platform_device *dev, unsigned int type,
unsigned int num)
struct resource *platform_get_resource(struct platform_device *dev,
unsigned int type, unsigned int num)
{
int i;
@ -43,8 +43,7 @@ platform_get_resource(struct platform_device *dev, unsigned int type,
struct resource *r = &dev->resource[i];
if ((r->flags & (IORESOURCE_IO|IORESOURCE_MEM|
IORESOURCE_IRQ|IORESOURCE_DMA))
== type)
IORESOURCE_IRQ|IORESOURCE_DMA)) == type)
if (num-- == 0)
return r;
}
@ -71,9 +70,8 @@ EXPORT_SYMBOL_GPL(platform_get_irq);
* @type: resource type
* @name: resource name
*/
struct resource *
platform_get_resource_byname(struct platform_device *dev, unsigned int type,
char *name)
struct resource *platform_get_resource_byname(struct platform_device *dev,
unsigned int type, char *name)
{
int i;
@ -96,7 +94,8 @@ EXPORT_SYMBOL_GPL(platform_get_resource_byname);
*/
int platform_get_irq_byname(struct platform_device *dev, char *name)
{
struct resource *r = platform_get_resource_byname(dev, IORESOURCE_IRQ, name);
struct resource *r = platform_get_resource_byname(dev, IORESOURCE_IRQ,
name);
return r ? r->start : -ENXIO;
}
@ -133,9 +132,8 @@ struct platform_object {
* platform_device_put
* @pdev: platform device to free
*
* Free all memory associated with a platform device. This function
* must _only_ be externally called in error cases. All other usage
* is a bug.
* Free all memory associated with a platform device. This function must
* _only_ be externally called in error cases. All other usage is a bug.
*/
void platform_device_put(struct platform_device *pdev)
{
@ -146,7 +144,8 @@ EXPORT_SYMBOL_GPL(platform_device_put);
static void platform_device_release(struct device *dev)
{
struct platform_object *pa = container_of(dev, struct platform_object, pdev.dev);
struct platform_object *pa = container_of(dev, struct platform_object,
pdev.dev);
kfree(pa->pdev.dev.platform_data);
kfree(pa->pdev.resource);
@ -185,10 +184,11 @@ EXPORT_SYMBOL_GPL(platform_device_alloc);
* @num: number of resources
*
* Add a copy of the resources to the platform device. The memory
* associated with the resources will be freed when the platform
* device is released.
* associated with the resources will be freed when the platform device is
* released.
*/
int platform_device_add_resources(struct platform_device *pdev, struct resource *res, unsigned int num)
int platform_device_add_resources(struct platform_device *pdev,
struct resource *res, unsigned int num)
{
struct resource *r;
@ -208,11 +208,12 @@ EXPORT_SYMBOL_GPL(platform_device_add_resources);
* @data: platform specific data for this platform device
* @size: size of platform specific data
*
* Add a copy of platform specific data to the platform device's platform_data
* pointer. The memory associated with the platform data will be freed
* when the platform device is released.
* Add a copy of platform specific data to the platform device's
* platform_data pointer. The memory associated with the platform data
* will be freed when the platform device is released.
*/
int platform_device_add_data(struct platform_device *pdev, const void *data, size_t size)
int platform_device_add_data(struct platform_device *pdev, const void *data,
size_t size)
{
void *d;
@ -293,9 +294,8 @@ EXPORT_SYMBOL_GPL(platform_device_add);
* @pdev: platform device we're removing
*
* Note that this function will also release all memory- and port-based
* resources owned by the device (@dev->resource). This function
* must _only_ be externally called in error cases. All other usage
* is a bug.
* resources owned by the device (@dev->resource). This function must
* _only_ be externally called in error cases. All other usage is a bug.
*/
void platform_device_del(struct platform_device *pdev)
{
@ -316,7 +316,6 @@ EXPORT_SYMBOL_GPL(platform_device_del);
/**
* platform_device_register - add a platform-level device
* @pdev: platform device we're adding
*
*/
int platform_device_register(struct platform_device *pdev)
{
@ -348,20 +347,22 @@ EXPORT_SYMBOL_GPL(platform_device_unregister);
* @num: number of resources
*
* This function creates a simple platform device that requires minimal
* resource and memory management. Canned release function freeing
* memory allocated for the device allows drivers using such devices
* to be unloaded without waiting for the last reference to the device
* to be dropped.
* resource and memory management. Canned release function freeing memory
* allocated for the device allows drivers using such devices to be
* unloaded without waiting for the last reference to the device to be
* dropped.
*
* This interface is primarily intended for use with legacy drivers
* which probe hardware directly. Because such drivers create sysfs
* device nodes themselves, rather than letting system infrastructure
* handle such device enumeration tasks, they don't fully conform to
* the Linux driver model. In particular, when such drivers are built
* as modules, they can't be "hotplugged".
* This interface is primarily intended for use with legacy drivers which
* probe hardware directly. Because such drivers create sysfs device nodes
* themselves, rather than letting system infrastructure handle such device
* enumeration tasks, they don't fully conform to the Linux driver model.
* In particular, when such drivers are built as modules, they can't be
* "hotplugged".
*/
struct platform_device *platform_device_register_simple(const char *name, int id,
struct resource *res, unsigned int num)
struct platform_device *platform_device_register_simple(const char *name,
int id,
struct resource *res,
unsigned int num)
{
struct platform_device *pdev;
int retval;
@ -516,8 +517,8 @@ EXPORT_SYMBOL_GPL(platform_driver_probe);
* (b) sysfs attribute lets new-style coldplug recover from hotplug events
* mishandled before system is fully running: "modprobe $(cat modalias)"
*/
static ssize_t
modalias_show(struct device *dev, struct device_attribute *a, char *buf)
static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
char *buf)
{
struct platform_device *pdev = to_platform_device(dev);
int len = snprintf(buf, PAGE_SIZE, "platform:%s\n", pdev->name);
@ -538,26 +539,24 @@ static int platform_uevent(struct device *dev, struct kobj_uevent_env *env)
return 0;
}
/**
* platform_match - bind platform device to platform driver.
* @dev: device.
* @drv: driver.
*
* Platform device IDs are assumed to be encoded like this:
* "<name><instance>", where <name> is a short description of the
* type of device, like "pci" or "floppy", and <instance> is the
* enumerated instance of the device, like '0' or '42'.
* Driver IDs are simply "<name>".
* So, extract the <name> from the platform_device structure,
* and compare it against the name of the driver. Return whether
* they match or not.
* "<name><instance>", where <name> is a short description of the type of
* device, like "pci" or "floppy", and <instance> is the enumerated
* instance of the device, like '0' or '42'. Driver IDs are simply
* "<name>". So, extract the <name> from the platform_device structure,
* and compare it against the name of the driver. Return whether they match
* or not.
*/
static int platform_match(struct device *dev, struct device_driver *drv)
{
struct platform_device *pdev = container_of(dev, struct platform_device, dev);
struct platform_device *pdev;
pdev = container_of(dev, struct platform_device, dev);
return (strncmp(pdev->name, drv->name, BUS_ID_SIZE) == 0);
}
@ -574,9 +573,10 @@ static int platform_suspend(struct device *dev, pm_message_t mesg)
static int platform_suspend_late(struct device *dev, pm_message_t mesg)
{
struct platform_driver *drv = to_platform_driver(dev->driver);
struct platform_device *pdev = container_of(dev, struct platform_device, dev);
struct platform_device *pdev;
int ret = 0;
pdev = container_of(dev, struct platform_device, dev);
if (dev->driver && drv->suspend_late)
ret = drv->suspend_late(pdev, mesg);
@ -586,9 +586,10 @@ static int platform_suspend_late(struct device *dev, pm_message_t mesg)
static int platform_resume_early(struct device *dev)
{
struct platform_driver *drv = to_platform_driver(dev->driver);
struct platform_device *pdev = container_of(dev, struct platform_device, dev);
struct platform_device *pdev;
int ret = 0;
pdev = container_of(dev, struct platform_device, dev);
if (dev->driver && drv->resume_early)
ret = drv->resume_early(pdev);