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
@ -46,10 +46,10 @@ static void bus_put(struct bus_type *bus)
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kset_put(&bus->p->subsys);
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}
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static ssize_t
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drv_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
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static ssize_t drv_attr_show(struct kobject *kobj, struct attribute *attr,
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char *buf)
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{
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struct driver_attribute * drv_attr = to_drv_attr(attr);
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struct driver_attribute *drv_attr = to_drv_attr(attr);
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struct driver_private *drv_priv = to_driver(kobj);
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ssize_t ret = -EIO;
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@ -58,11 +58,10 @@ drv_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
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return ret;
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}
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static ssize_t
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drv_attr_store(struct kobject * kobj, struct attribute * attr,
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const char * buf, size_t count)
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static ssize_t drv_attr_store(struct kobject *kobj, struct attribute *attr,
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const char *buf, size_t count)
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{
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struct driver_attribute * drv_attr = to_drv_attr(attr);
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struct driver_attribute *drv_attr = to_drv_attr(attr);
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struct driver_private *drv_priv = to_driver(kobj);
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ssize_t ret = -EIO;
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@ -89,16 +88,13 @@ static struct kobj_type driver_ktype = {
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.release = driver_release,
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};
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/*
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* sysfs bindings for buses
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*/
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static ssize_t
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bus_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
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static ssize_t bus_attr_show(struct kobject *kobj, struct attribute *attr,
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char *buf)
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{
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struct bus_attribute * bus_attr = to_bus_attr(attr);
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struct bus_attribute *bus_attr = to_bus_attr(attr);
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struct bus_type_private *bus_priv = to_bus(kobj);
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ssize_t ret = 0;
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@ -107,11 +103,10 @@ bus_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
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return ret;
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}
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static ssize_t
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bus_attr_store(struct kobject * kobj, struct attribute * attr,
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const char * buf, size_t count)
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static ssize_t bus_attr_store(struct kobject *kobj, struct attribute *attr,
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const char *buf, size_t count)
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{
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struct bus_attribute * bus_attr = to_bus_attr(attr);
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struct bus_attribute *bus_attr = to_bus_attr(attr);
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struct bus_type_private *bus_priv = to_bus(kobj);
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ssize_t ret = 0;
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@ -125,7 +120,7 @@ static struct sysfs_ops bus_sysfs_ops = {
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.store = bus_attr_store,
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};
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int bus_create_file(struct bus_type * bus, struct bus_attribute * attr)
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int bus_create_file(struct bus_type *bus, struct bus_attribute *attr)
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{
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int error;
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if (bus_get(bus)) {
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@ -135,14 +130,16 @@ int bus_create_file(struct bus_type * bus, struct bus_attribute * attr)
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error = -EINVAL;
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return error;
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}
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EXPORT_SYMBOL_GPL(bus_create_file);
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void bus_remove_file(struct bus_type * bus, struct bus_attribute * attr)
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void bus_remove_file(struct bus_type *bus, struct bus_attribute *attr)
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{
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if (bus_get(bus)) {
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sysfs_remove_file(&bus->p->subsys.kobj, &attr->attr);
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bus_put(bus);
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}
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}
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EXPORT_SYMBOL_GPL(bus_remove_file);
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static struct kobj_type bus_ktype = {
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.sysfs_ops = &bus_sysfs_ops,
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@ -219,10 +216,13 @@ static ssize_t driver_bind(struct device_driver *drv,
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if (dev->parent)
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up(&dev->parent->sem);
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if (err > 0) /* success */
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if (err > 0) {
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/* success */
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err = count;
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else if (err == 0) /* driver didn't accept device */
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} else if (err == 0) {
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/* driver didn't accept device */
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err = -ENODEV;
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}
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}
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put_device(dev);
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bus_put(bus);
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@ -259,37 +259,36 @@ static ssize_t store_drivers_probe(struct bus_type *bus,
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}
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#endif
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static struct device * next_device(struct klist_iter * i)
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static struct device *next_device(struct klist_iter *i)
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{
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struct klist_node * n = klist_next(i);
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struct klist_node *n = klist_next(i);
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return n ? container_of(n, struct device, knode_bus) : NULL;
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}
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/**
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* bus_for_each_dev - device iterator.
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* @bus: bus type.
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* @start: device to start iterating from.
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* @data: data for the callback.
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* @fn: function to be called for each device.
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* bus_for_each_dev - device iterator.
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* @bus: bus type.
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* @start: device to start iterating from.
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* @data: data for the callback.
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* @fn: function to be called for each device.
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*
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* Iterate over @bus's list of devices, and call @fn for each,
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* passing it @data. If @start is not NULL, we use that device to
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* begin iterating from.
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* Iterate over @bus's list of devices, and call @fn for each,
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* passing it @data. If @start is not NULL, we use that device to
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* begin iterating from.
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*
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* We check the return of @fn each time. If it returns anything
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* other than 0, we break out and return that value.
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* We check the return of @fn each time. If it returns anything
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* other than 0, we break out and return that value.
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*
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* NOTE: The device that returns a non-zero value is not retained
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* in any way, nor is its refcount incremented. If the caller needs
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* to retain this data, it should do, and increment the reference
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* count in the supplied callback.
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* NOTE: The device that returns a non-zero value is not retained
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* in any way, nor is its refcount incremented. If the caller needs
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* to retain this data, it should do, and increment the reference
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* count in the supplied callback.
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*/
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int bus_for_each_dev(struct bus_type * bus, struct device * start,
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void * data, int (*fn)(struct device *, void *))
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int bus_for_each_dev(struct bus_type *bus, struct device *start,
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void *data, int (*fn)(struct device *, void *))
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{
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struct klist_iter i;
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struct device * dev;
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struct device *dev;
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int error = 0;
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if (!bus)
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@ -302,6 +301,7 @@ int bus_for_each_dev(struct bus_type * bus, struct device * start,
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klist_iter_exit(&i);
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return error;
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}
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EXPORT_SYMBOL_GPL(bus_for_each_dev);
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/**
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* bus_find_device - device iterator for locating a particular device.
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@ -318,9 +318,9 @@ int bus_for_each_dev(struct bus_type * bus, struct device * start,
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* if it does. If the callback returns non-zero, this function will
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* return to the caller and not iterate over any more devices.
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*/
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struct device * bus_find_device(struct bus_type *bus,
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struct device *start, void *data,
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int (*match)(struct device *, void *))
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struct device *bus_find_device(struct bus_type *bus,
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struct device *start, void *data,
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int (*match)(struct device *dev, void *data))
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{
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struct klist_iter i;
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struct device *dev;
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@ -336,11 +336,11 @@ struct device * bus_find_device(struct bus_type *bus,
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klist_iter_exit(&i);
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return dev;
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}
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EXPORT_SYMBOL_GPL(bus_find_device);
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static struct device_driver * next_driver(struct klist_iter * i)
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static struct device_driver *next_driver(struct klist_iter *i)
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{
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struct klist_node * n = klist_next(i);
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struct klist_node *n = klist_next(i);
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struct driver_private *drv_priv;
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if (n) {
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@ -351,30 +351,29 @@ static struct device_driver * next_driver(struct klist_iter * i)
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}
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/**
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* bus_for_each_drv - driver iterator
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* @bus: bus we're dealing with.
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* @start: driver to start iterating on.
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* @data: data to pass to the callback.
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* @fn: function to call for each driver.
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* bus_for_each_drv - driver iterator
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* @bus: bus we're dealing with.
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* @start: driver to start iterating on.
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* @data: data to pass to the callback.
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* @fn: function to call for each driver.
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*
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* This is nearly identical to the device iterator above.
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* We iterate over each driver that belongs to @bus, and call
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* @fn for each. If @fn returns anything but 0, we break out
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* and return it. If @start is not NULL, we use it as the head
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* of the list.
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* This is nearly identical to the device iterator above.
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* We iterate over each driver that belongs to @bus, and call
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* @fn for each. If @fn returns anything but 0, we break out
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* and return it. If @start is not NULL, we use it as the head
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* of the list.
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*
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* NOTE: we don't return the driver that returns a non-zero
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* value, nor do we leave the reference count incremented for that
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* driver. If the caller needs to know that info, it must set it
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* in the callback. It must also be sure to increment the refcount
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* so it doesn't disappear before returning to the caller.
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* NOTE: we don't return the driver that returns a non-zero
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* value, nor do we leave the reference count incremented for that
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* driver. If the caller needs to know that info, it must set it
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* in the callback. It must also be sure to increment the refcount
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* so it doesn't disappear before returning to the caller.
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*/
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int bus_for_each_drv(struct bus_type * bus, struct device_driver * start,
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void * data, int (*fn)(struct device_driver *, void *))
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int bus_for_each_drv(struct bus_type *bus, struct device_driver *start,
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void *data, int (*fn)(struct device_driver *, void *))
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{
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struct klist_iter i;
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struct device_driver * drv;
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struct device_driver *drv;
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int error = 0;
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if (!bus)
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@ -387,6 +386,7 @@ int bus_for_each_drv(struct bus_type * bus, struct device_driver * start,
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klist_iter_exit(&i);
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return error;
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}
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EXPORT_SYMBOL_GPL(bus_for_each_drv);
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static int device_add_attrs(struct bus_type *bus, struct device *dev)
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{
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@ -397,7 +397,7 @@ static int device_add_attrs(struct bus_type *bus, struct device *dev)
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return 0;
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for (i = 0; attr_name(bus->dev_attrs[i]); i++) {
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error = device_create_file(dev,&bus->dev_attrs[i]);
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error = device_create_file(dev, &bus->dev_attrs[i]);
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if (error) {
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while (--i >= 0)
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device_remove_file(dev, &bus->dev_attrs[i]);
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@ -407,13 +407,13 @@ static int device_add_attrs(struct bus_type *bus, struct device *dev)
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return error;
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}
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static void device_remove_attrs(struct bus_type * bus, struct device * dev)
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static void device_remove_attrs(struct bus_type *bus, struct device *dev)
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{
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int i;
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if (bus->dev_attrs) {
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for (i = 0; attr_name(bus->dev_attrs[i]); i++)
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device_remove_file(dev,&bus->dev_attrs[i]);
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device_remove_file(dev, &bus->dev_attrs[i]);
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}
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}
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@ -434,15 +434,15 @@ static inline void remove_deprecated_bus_links(struct device *dev) { }
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#endif
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/**
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* bus_add_device - add device to bus
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* @dev: device being added
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* bus_add_device - add device to bus
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* @dev: device being added
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*
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* - Add the device to its bus's list of devices.
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* - Create link to device's bus.
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* - Add the device to its bus's list of devices.
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* - Create link to device's bus.
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*/
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int bus_add_device(struct device * dev)
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int bus_add_device(struct device *dev)
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{
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struct bus_type * bus = bus_get(dev->bus);
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struct bus_type *bus = bus_get(dev->bus);
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int error = 0;
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if (bus) {
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@ -476,13 +476,13 @@ out_put:
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}
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/**
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* bus_attach_device - add device to bus
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* @dev: device tried to attach to a driver
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* bus_attach_device - add device to bus
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* @dev: device tried to attach to a driver
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*
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* - Add device to bus's list of devices.
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* - Try to attach to driver.
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* - Add device to bus's list of devices.
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* - Try to attach to driver.
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*/
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void bus_attach_device(struct device * dev)
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void bus_attach_device(struct device *dev)
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{
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struct bus_type *bus = dev->bus;
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int ret = 0;
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@ -500,32 +500,34 @@ void bus_attach_device(struct device * dev)
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}
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/**
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* bus_remove_device - remove device from bus
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* @dev: device to be removed
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* bus_remove_device - remove device from bus
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* @dev: device to be removed
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*
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* - Remove symlink from bus's directory.
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* - Delete device from bus's list.
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* - Detach from its driver.
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* - Drop reference taken in bus_add_device().
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* - Remove symlink from bus's directory.
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* - Delete device from bus's list.
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* - Detach from its driver.
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* - Drop reference taken in bus_add_device().
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*/
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void bus_remove_device(struct device * dev)
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void bus_remove_device(struct device *dev)
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{
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if (dev->bus) {
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sysfs_remove_link(&dev->kobj, "subsystem");
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remove_deprecated_bus_links(dev);
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sysfs_remove_link(&dev->bus->p->devices_kset->kobj, dev->bus_id);
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sysfs_remove_link(&dev->bus->p->devices_kset->kobj,
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dev->bus_id);
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device_remove_attrs(dev->bus, dev);
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if (dev->is_registered) {
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dev->is_registered = 0;
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klist_del(&dev->knode_bus);
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}
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pr_debug("bus: '%s': remove device %s\n", dev->bus->name, dev->bus_id);
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pr_debug("bus: '%s': remove device %s\n",
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dev->bus->name, dev->bus_id);
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device_release_driver(dev);
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bus_put(dev->bus);
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}
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}
|
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|
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static int driver_add_attrs(struct bus_type * bus, struct device_driver * drv)
|
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static int driver_add_attrs(struct bus_type *bus, struct device_driver *drv)
|
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{
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int error = 0;
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||||
int i;
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||||
@ -534,19 +536,19 @@ static int driver_add_attrs(struct bus_type * bus, struct device_driver * drv)
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for (i = 0; attr_name(bus->drv_attrs[i]); i++) {
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error = driver_create_file(drv, &bus->drv_attrs[i]);
|
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if (error)
|
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goto Err;
|
||||
goto err;
|
||||
}
|
||||
}
|
||||
Done:
|
||||
done:
|
||||
return error;
|
||||
Err:
|
||||
err:
|
||||
while (--i >= 0)
|
||||
driver_remove_file(drv, &bus->drv_attrs[i]);
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goto Done;
|
||||
goto done;
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||||
}
|
||||
|
||||
|
||||
static void driver_remove_attrs(struct bus_type * bus, struct device_driver * drv)
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static void driver_remove_attrs(struct bus_type *bus,
|
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struct device_driver *drv)
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||||
{
|
||||
int i;
|
||||
|
||||
@ -623,9 +625,8 @@ static ssize_t driver_uevent_store(struct device_driver *drv,
|
||||
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.
|
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* @drv: driver.
|
||||
*/
|
||||
int bus_add_driver(struct device_driver *drv)
|
||||
{
|
||||
@ -688,15 +689,14 @@ out_put_bus:
|
||||
}
|
||||
|
||||
/**
|
||||
* 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 @@ 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)
|
||||
void *data)
|
||||
{
|
||||
int ret = 0;
|
||||
|
||||
@ -737,10 +736,11 @@ static int __must_check bus_rescan_devices_helper(struct device *dev,
|
||||
* 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 @@ int device_reprobe(struct device *dev)
|
||||
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 ssize_t bus_uevent_store(struct bus_type *bus,
|
||||
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 @@ bus_uevent_fail:
|
||||
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 @@ 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);
|
||||
|
||||
Reference in New Issue
Block a user