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-rw-r--r--lib/kobject.c139
1 files changed, 64 insertions, 75 deletions
diff --git a/lib/kobject.c b/lib/kobject.c
index 8dc3245..1d63ead 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -18,58 +18,57 @@
#include <linux/stat.h>
#include <linux/slab.h>
-/**
- * populate_dir - populate directory with attributes.
- * @kobj: object we're working on.
- *
- * Most subsystems have a set of default attributes that
- * are associated with an object that registers with them.
- * This is a helper called during object registration that
- * loops through the default attributes of the subsystem
- * and creates attributes files for them in sysfs.
+/*
+ * populate_dir - populate directory with attributes.
+ * @kobj: object we're working on.
*
+ * Most subsystems have a set of default attributes that are associated
+ * with an object that registers with them. This is a helper called during
+ * object registration that loops through the default attributes of the
+ * subsystem and creates attributes files for them in sysfs.
*/
-
-static int populate_dir(struct kobject * kobj)
+static int populate_dir(struct kobject *kobj)
{
- struct kobj_type * t = get_ktype(kobj);
- struct attribute * attr;
+ struct kobj_type *t = get_ktype(kobj);
+ struct attribute *attr;
int error = 0;
int i;
-
+
if (t && t->default_attrs) {
for (i = 0; (attr = t->default_attrs[i]) != NULL; i++) {
- if ((error = sysfs_create_file(kobj,attr)))
+ error = sysfs_create_file(kobj, attr);
+ if (error)
break;
}
}
return error;
}
-static int create_dir(struct kobject * kobj)
+static int create_dir(struct kobject *kobj)
{
int error = 0;
if (kobject_name(kobj)) {
error = sysfs_create_dir(kobj);
if (!error) {
- if ((error = populate_dir(kobj)))
+ error = populate_dir(kobj);
+ if (error)
sysfs_remove_dir(kobj);
}
}
return error;
}
-static inline struct kobject * to_kobj(struct list_head * entry)
+static inline struct kobject *to_kobj(struct list_head *entry)
{
- return container_of(entry,struct kobject,entry);
+ return container_of(entry, struct kobject, entry);
}
static int get_kobj_path_length(struct kobject *kobj)
{
int length = 1;
- struct kobject * parent = kobj;
+ struct kobject *parent = kobj;
- /* walk up the ancestors until we hit the one pointing to the
+ /* walk up the ancestors until we hit the one pointing to the
* root.
* Add 1 to strlen for leading '/' of each level.
*/
@@ -84,19 +83,19 @@ static int get_kobj_path_length(struct kobject *kobj)
static void fill_kobj_path(struct kobject *kobj, char *path, int length)
{
- struct kobject * parent;
+ struct kobject *parent;
--length;
for (parent = kobj; parent; parent = parent->parent) {
int cur = strlen(kobject_name(parent));
/* back up enough to print this name with '/' */
length -= cur;
- strncpy (path + length, kobject_name(parent), cur);
+ strncpy(path + length, kobject_name(parent), cur);
*(path + --length) = '/';
}
pr_debug("kobject: '%s' (%p): %s: path = '%s'\n", kobject_name(kobj),
- kobj, __FUNCTION__,path);
+ kobj, __FUNCTION__, path);
}
/**
@@ -148,7 +147,7 @@ static void kobj_kset_leave(struct kobject *kobj)
kset_put(kobj->kset);
}
-static void kobject_init_internal(struct kobject * kobj)
+static void kobject_init_internal(struct kobject *kobj)
{
if (!kobj)
return;
@@ -160,7 +159,7 @@ static void kobject_init_internal(struct kobject * kobj)
static int kobject_add_internal(struct kobject *kobj)
{
int error = 0;
- struct kobject * parent;
+ struct kobject *parent;
if (!kobj)
return -ENOENT;
@@ -185,7 +184,7 @@ static int kobject_add_internal(struct kobject *kobj)
pr_debug("kobject: '%s' (%p): %s: parent: '%s', set: '%s'\n",
kobject_name(kobj), kobj, __FUNCTION__,
parent ? kobject_name(parent) : "<NULL>",
- kobj->kset ? kobject_name(&kobj->kset->kobj) : "<NULL>" );
+ kobj->kset ? kobject_name(&kobj->kset->kobj) : "<NULL>");
error = create_dir(kobj);
if (error) {
@@ -399,12 +398,11 @@ int kobject_init_and_add(struct kobject *kobj, struct kobj_type *ktype,
EXPORT_SYMBOL_GPL(kobject_init_and_add);
/**
- * kobject_rename - change the name of an object
- * @kobj: object in question.
- * @new_name: object's new name
+ * kobject_rename - change the name of an object
+ * @kobj: object in question.
+ * @new_name: object's new name
*/
-
-int kobject_rename(struct kobject * kobj, const char *new_name)
+int kobject_rename(struct kobject *kobj, const char *new_name)
{
int error = 0;
const char *devpath = NULL;
@@ -461,11 +459,10 @@ out:
}
/**
- * kobject_move - move object to another parent
- * @kobj: object in question.
- * @new_parent: object's new parent (can be NULL)
+ * kobject_move - move object to another parent
+ * @kobj: object in question.
+ * @new_parent: object's new parent (can be NULL)
*/
-
int kobject_move(struct kobject *kobj, struct kobject *new_parent)
{
int error;
@@ -513,11 +510,10 @@ out:
}
/**
- * kobject_del - unlink kobject from hierarchy.
- * @kobj: object.
+ * kobject_del - unlink kobject from hierarchy.
+ * @kobj: object.
*/
-
-void kobject_del(struct kobject * kobj)
+void kobject_del(struct kobject *kobj)
{
if (!kobj)
return;
@@ -530,11 +526,10 @@ void kobject_del(struct kobject * kobj)
}
/**
- * kobject_get - increment refcount for object.
- * @kobj: object.
+ * kobject_get - increment refcount for object.
+ * @kobj: object.
*/
-
-struct kobject * kobject_get(struct kobject * kobj)
+struct kobject *kobject_get(struct kobject *kobj)
{
if (kobj)
kref_get(&kobj->kref);
@@ -591,12 +586,12 @@ static void kobject_release(struct kref *kref)
}
/**
- * kobject_put - decrement refcount for object.
- * @kobj: object.
+ * kobject_put - decrement refcount for object.
+ * @kobj: object.
*
- * Decrement the refcount, and if 0, call kobject_cleanup().
+ * Decrement the refcount, and if 0, call kobject_cleanup().
*/
-void kobject_put(struct kobject * kobj)
+void kobject_put(struct kobject *kobj)
{
if (kobj)
kref_put(&kobj->kref, kobject_release);
@@ -670,11 +665,10 @@ struct kobject *kobject_create_and_add(const char *name, struct kobject *parent)
EXPORT_SYMBOL_GPL(kobject_create_and_add);
/**
- * kset_init - initialize a kset for use
- * @k: kset
+ * kset_init - initialize a kset for use
+ * @k: kset
*/
-
-void kset_init(struct kset * k)
+void kset_init(struct kset *k)
{
kobject_init_internal(&k->kobj);
INIT_LIST_HEAD(&k->list);
@@ -712,11 +706,10 @@ struct sysfs_ops kobj_sysfs_ops = {
};
/**
- * kset_register - initialize and add a kset.
- * @k: kset.
+ * kset_register - initialize and add a kset.
+ * @k: kset.
*/
-
-int kset_register(struct kset * k)
+int kset_register(struct kset *k)
{
int err;
@@ -731,39 +724,35 @@ int kset_register(struct kset * k)
return 0;
}
-
/**
- * kset_unregister - remove a kset.
- * @k: kset.
+ * kset_unregister - remove a kset.
+ * @k: kset.
*/
-
-void kset_unregister(struct kset * k)
+void kset_unregister(struct kset *k)
{
if (!k)
return;
kobject_put(&k->kobj);
}
-
/**
- * kset_find_obj - search for object in kset.
- * @kset: kset we're looking in.
- * @name: object's name.
+ * kset_find_obj - search for object in kset.
+ * @kset: kset we're looking in.
+ * @name: object's name.
*
- * Lock kset via @kset->subsys, and iterate over @kset->list,
- * looking for a matching kobject. If matching object is found
- * take a reference and return the object.
+ * Lock kset via @kset->subsys, and iterate over @kset->list,
+ * looking for a matching kobject. If matching object is found
+ * take a reference and return the object.
*/
-
-struct kobject * kset_find_obj(struct kset * kset, const char * name)
+struct kobject *kset_find_obj(struct kset *kset, const char *name)
{
- struct list_head * entry;
- struct kobject * ret = NULL;
+ struct list_head *entry;
+ struct kobject *ret = NULL;
spin_lock(&kset->list_lock);
- list_for_each(entry,&kset->list) {
- struct kobject * k = to_kobj(entry);
- if (kobject_name(k) && !strcmp(kobject_name(k),name)) {
+ list_for_each(entry, &kset->list) {
+ struct kobject *k = to_kobj(entry);
+ if (kobject_name(k) && !strcmp(kobject_name(k), name)) {
ret = kobject_get(k);
break;
}
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