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>
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index a377b65..f484495 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -46,10 +46,10 @@
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_attribute *drv_attr = to_drv_attr(attr);
struct driver_private *drv_priv = to_driver(kobj);
ssize_t ret = -EIO;
@@ -58,11 +58,10 @@
return ret;
}
-static ssize_t
-drv_attr_store(struct kobject * kobj, struct attribute * attr,
- const char * buf, size_t count)
+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);
+ struct driver_attribute *drv_attr = to_drv_attr(attr);
struct driver_private *drv_priv = to_driver(kobj);
ssize_t ret = -EIO;
@@ -89,16 +88,13 @@
.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_attribute *bus_attr = to_bus_attr(attr);
struct bus_type_private *bus_priv = to_bus(kobj);
ssize_t ret = 0;
@@ -107,11 +103,10 @@
return ret;
}
-static ssize_t
-bus_attr_store(struct kobject * kobj, struct attribute * attr,
- const char * buf, size_t count)
+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);
+ struct bus_attribute *bus_attr = to_bus_attr(attr);
struct bus_type_private *bus_priv = to_bus(kobj);
ssize_t ret = 0;
@@ -125,7 +120,7 @@
.store = bus_attr_store,
};
-int bus_create_file(struct bus_type * bus, struct bus_attribute * attr)
+int bus_create_file(struct bus_type *bus, struct bus_attribute *attr)
{
int error;
if (bus_get(bus)) {
@@ -135,14 +130,16 @@
error = -EINVAL;
return error;
}
+EXPORT_SYMBOL_GPL(bus_create_file);
-void bus_remove_file(struct bus_type * bus, struct bus_attribute * attr)
+void bus_remove_file(struct bus_type *bus, struct bus_attribute *attr)
{
if (bus_get(bus)) {
sysfs_remove_file(&bus->p->subsys.kobj, &attr->attr);
bus_put(bus);
}
}
+EXPORT_SYMBOL_GPL(bus_remove_file);
static struct kobj_type bus_ktype = {
.sysfs_ops = &bus_sysfs_ops,
@@ -219,10 +216,13 @@
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);
@@ -259,37 +259,36 @@
}
#endif
-static struct device * next_device(struct klist_iter * i)
+static struct device *next_device(struct klist_iter *i)
{
- struct klist_node * n = klist_next(i);
+ struct klist_node *n = klist_next(i);
return n ? container_of(n, struct device, knode_bus) : NULL;
}
/**
- * bus_for_each_dev - device iterator.
- * @bus: bus type.
- * @start: device to start iterating from.
- * @data: data for the callback.
- * @fn: function to be called for each device.
+ * bus_for_each_dev - device iterator.
+ * @bus: bus type.
+ * @start: device to start iterating from.
+ * @data: data for the callback.
+ * @fn: function to be called for each device.
*
- * Iterate over @bus's list of devices, and call @fn for each,
- * passing it @data. If @start is not NULL, we use that device to
- * begin iterating from.
+ * Iterate over @bus's list of devices, and call @fn for each,
+ * passing it @data. If @start is not NULL, we use that device to
+ * begin iterating from.
*
- * We check the return of @fn each time. If it returns anything
- * other than 0, we break out and return that value.
+ * We check the return of @fn each time. If it returns anything
+ * other than 0, we break out and return that value.
*
- * NOTE: The device that returns a non-zero value is not retained
- * in any way, nor is its refcount incremented. If the caller needs
- * to retain this data, it should do, and increment the reference
- * count in the supplied callback.
+ * NOTE: The device that returns a non-zero value is not retained
+ * in any way, nor is its refcount incremented. If the caller needs
+ * 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 *))
+int bus_for_each_dev(struct bus_type *bus, struct device *start,
+ void *data, int (*fn)(struct device *, void *))
{
struct klist_iter i;
- struct device * dev;
+ struct device *dev;
int error = 0;
if (!bus)
@@ -302,6 +301,7 @@
klist_iter_exit(&i);
return error;
}
+EXPORT_SYMBOL_GPL(bus_for_each_dev);
/**
* bus_find_device - device iterator for locating a particular device.
@@ -318,9 +318,9 @@
* if it does. If the callback returns non-zero, this function will
* return to the caller and not iterate over any more devices.
*/
-struct device * bus_find_device(struct bus_type *bus,
- struct device *start, void *data,
- int (*match)(struct device *, void *))
+struct device *bus_find_device(struct bus_type *bus,
+ struct device *start, void *data,
+ int (*match)(struct device *dev, void *data))
{
struct klist_iter i;
struct device *dev;
@@ -336,11 +336,11 @@
klist_iter_exit(&i);
return dev;
}
+EXPORT_SYMBOL_GPL(bus_find_device);
-
-static struct device_driver * next_driver(struct klist_iter * i)
+static struct device_driver *next_driver(struct klist_iter *i)
{
- struct klist_node * n = klist_next(i);
+ struct klist_node *n = klist_next(i);
struct driver_private *drv_priv;
if (n) {
@@ -351,30 +351,29 @@
}
/**
- * bus_for_each_drv - driver iterator
- * @bus: bus we're dealing with.
- * @start: driver to start iterating on.
- * @data: data to pass to the callback.
- * @fn: function to call for each driver.
+ * bus_for_each_drv - driver iterator
+ * @bus: bus we're dealing with.
+ * @start: driver to start iterating on.
+ * @data: data to pass to the callback.
+ * @fn: function to call for each driver.
*
- * This is nearly identical to the device iterator above.
- * We iterate over each driver that belongs to @bus, and call
- * @fn for each. If @fn returns anything but 0, we break out
- * and return it. If @start is not NULL, we use it as the head
- * of the list.
+ * This is nearly identical to the device iterator above.
+ * We iterate over each driver that belongs to @bus, and call
+ * @fn for each. If @fn returns anything but 0, we break out
+ * and return it. If @start is not NULL, we use it as the head
+ * of the list.
*
- * NOTE: we don't return the driver that returns a non-zero
- * value, nor do we leave the reference count incremented for that
- * driver. If the caller needs to know that info, it must set it
- * in the callback. It must also be sure to increment the refcount
- * so it doesn't disappear before returning to the caller.
+ * NOTE: we don't return the driver that returns a non-zero
+ * value, nor do we leave the reference count incremented for that
+ * driver. If the caller needs to know that info, it must set it
+ * 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 *))
+int bus_for_each_drv(struct bus_type *bus, struct device_driver *start,
+ void *data, int (*fn)(struct device_driver *, void *))
{
struct klist_iter i;
- struct device_driver * drv;
+ struct device_driver *drv;
int error = 0;
if (!bus)
@@ -387,6 +386,7 @@
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)
{
@@ -397,7 +397,7 @@
return 0;
for (i = 0; attr_name(bus->dev_attrs[i]); i++) {
- error = device_create_file(dev,&bus->dev_attrs[i]);
+ error = device_create_file(dev, &bus->dev_attrs[i]);
if (error) {
while (--i >= 0)
device_remove_file(dev, &bus->dev_attrs[i]);
@@ -407,13 +407,13 @@
return error;
}
-static void device_remove_attrs(struct bus_type * bus, struct device * dev)
+static void device_remove_attrs(struct bus_type *bus, struct device *dev)
{
int i;
if (bus->dev_attrs) {
for (i = 0; attr_name(bus->dev_attrs[i]); i++)
- device_remove_file(dev,&bus->dev_attrs[i]);
+ device_remove_file(dev, &bus->dev_attrs[i]);
}
}
@@ -434,15 +434,15 @@
#endif
/**
- * bus_add_device - add device to bus
- * @dev: device being added
+ * bus_add_device - add device to bus
+ * @dev: device being added
*
- * - Add the device to its bus's list of devices.
- * - Create link to device's bus.
+ * - Add the device to its bus's list of devices.
+ * - Create link to device's bus.
*/
-int bus_add_device(struct device * dev)
+int bus_add_device(struct device *dev)
{
- struct bus_type * bus = bus_get(dev->bus);
+ struct bus_type *bus = bus_get(dev->bus);
int error = 0;
if (bus) {
@@ -476,13 +476,13 @@
}
/**
- * bus_attach_device - add device to bus
- * @dev: device tried to attach to a driver
+ * bus_attach_device - add device to bus
+ * @dev: device tried to attach to a driver
*
- * - Add device to bus's list of devices.
- * - Try to attach to driver.
+ * - Add device to bus's list of devices.
+ * - Try to attach to driver.
*/
-void bus_attach_device(struct device * dev)
+void bus_attach_device(struct device *dev)
{
struct bus_type *bus = dev->bus;
int ret = 0;
@@ -500,32 +500,34 @@
}
/**
- * bus_remove_device - remove device from bus
- * @dev: device to be removed
+ * bus_remove_device - remove device from bus
+ * @dev: device to be removed
*
- * - Remove symlink from bus's directory.
- * - Delete device from bus's list.
- * - Detach from its driver.
- * - Drop reference taken in bus_add_device().
+ * - Remove symlink from bus's directory.
+ * - Delete device from bus's list.
+ * - Detach from its driver.
+ * - Drop reference taken in bus_add_device().
*/
-void bus_remove_device(struct device * dev)
+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);
}
}
-static int driver_add_attrs(struct bus_type * bus, struct device_driver * drv)
+static int driver_add_attrs(struct bus_type *bus, struct device_driver *drv)
{
int error = 0;
int i;
@@ -534,19 +536,19 @@
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;
@@ -623,9 +625,8 @@
static DRIVER_ATTR(uevent, S_IWUSR, NULL, driver_uevent_store);
/**
- * bus_add_driver - Add a driver to the bus.
- * @drv: driver.
- *
+ * bus_add_driver - Add a driver to the bus.
+ * @drv: driver.
*/
int bus_add_driver(struct device_driver *drv)
{
@@ -688,15 +689,14 @@
}
/**
- * bus_remove_driver - delete driver from bus's knowledge.
- * @drv: driver.
+ * bus_remove_driver - delete driver from bus's knowledge.
+ * @drv: driver.
*
- * Detach the driver from the devices it controls, and remove
- * it from its bus's list of drivers. Finally, we drop the reference
- * to the bus we took in bus_add_driver().
+ * Detach the driver from the devices it controls, and remove
+ * 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)
+void bus_remove_driver(struct device_driver *drv)
{
if (!drv->bus)
return;
@@ -712,10 +712,9 @@
bus_put(drv->bus);
}
-
/* Helper for bus_rescan_devices's iter */
static int __must_check bus_rescan_devices_helper(struct device *dev,
- void *data)
+ void *data)
{
int ret = 0;
@@ -737,10 +736,11 @@
* attached and rescan it against existing drivers to see if it matches
* any by calling device_attach() for the unbound devices.
*/
-int bus_rescan_devices(struct bus_type * bus)
+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
@@ -765,55 +765,55 @@
EXPORT_SYMBOL_GPL(device_reprobe);
/**
- * find_bus - locate bus by name.
- * @name: name of bus.
+ * find_bus - locate bus by name.
+ * @name: name of bus.
*
- * Call kset_find_obj() to iterate over list of buses to
- * find a bus by name. Return bus if found.
+ * Call kset_find_obj() to iterate over list of buses to
+ * find a bus by name. Return bus if found.
*
- * Note that kset_find_obj increments bus' reference count.
+ * Note that kset_find_obj increments bus' reference count.
*/
#if 0
-struct bus_type * find_bus(char * name)
+struct bus_type *find_bus(char *name)
{
- struct kobject * k = kset_find_obj(bus_kset, name);
+ struct kobject *k = kset_find_obj(bus_kset, name);
return k ? to_bus(k) : NULL;
}
#endif /* 0 */
/**
- * bus_add_attrs - Add default attributes for this bus.
- * @bus: Bus that has just been registered.
+ * bus_add_attrs - Add default attributes for this bus.
+ * @bus: Bus that has just been registered.
*/
-static int bus_add_attrs(struct bus_type * bus)
+static int bus_add_attrs(struct bus_type *bus)
{
int error = 0;
int i;
if (bus->bus_attrs) {
for (i = 0; attr_name(bus->bus_attrs[i]); i++) {
- error = bus_create_file(bus,&bus->bus_attrs[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;
+ bus_remove_file(bus, &bus->bus_attrs[i]);
+ goto done;
}
-static void bus_remove_attrs(struct bus_type * bus)
+static void bus_remove_attrs(struct bus_type *bus)
{
int i;
if (bus->bus_attrs) {
for (i = 0; attr_name(bus->bus_attrs[i]); i++)
- bus_remove_file(bus,&bus->bus_attrs[i]);
+ bus_remove_file(bus, &bus->bus_attrs[i]);
}
}
@@ -843,14 +843,14 @@
static BUS_ATTR(uevent, S_IWUSR, NULL, bus_uevent_store);
/**
- * bus_register - register a bus with the system.
- * @bus: bus.
+ * bus_register - register a bus with the system.
+ * @bus: bus.
*
- * Once we have that, we registered the bus with the kobject
- * infrastructure, then register the children subsystems it has:
- * the devices and drivers that belong to the bus.
+ * Once we have that, we registered the bus with the kobject
+ * infrastructure, then register the children subsystems it has:
+ * the devices and drivers that belong to the bus.
*/
-int bus_register(struct bus_type * bus)
+int bus_register(struct bus_type *bus)
{
int retval;
struct bus_type_private *priv;
@@ -922,15 +922,16 @@
out:
return retval;
}
+EXPORT_SYMBOL_GPL(bus_register);
/**
- * bus_unregister - remove a bus from the system
- * @bus: bus.
+ * bus_unregister - remove a bus from the system
+ * @bus: bus.
*
- * Unregister the child subsystems and the bus itself.
- * Finally, we call bus_put() to release the refcount
+ * Unregister the child subsystems and the bus itself.
+ * Finally, we call bus_put() to release the refcount
*/
-void bus_unregister(struct bus_type * bus)
+void bus_unregister(struct bus_type *bus)
{
pr_debug("bus: '%s': unregistering\n", bus->name);
bus_remove_attrs(bus);
@@ -941,6 +942,7 @@
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 @@
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);
