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Diffstat (limited to 'lib/kobject.c')
-rw-r--r--lib/kobject.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/lib/kobject.c b/lib/kobject.c
index 33e4f8c9ce58..bdf6636d2b2e 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -229,6 +229,38 @@ void subsystem_unregister(struct subsystem * s)
}
+/**
+ * subsystem_create_file - export sysfs attribute file.
+ * @s: subsystem.
+ * @a: subsystem attribute descriptor.
+ */
+
+int subsys_create_file(struct subsystem * s, struct subsys_attribute * a)
+{
+ int error = 0;
+ if (subsys_get(s)) {
+ error = sysfs_create_file(&s->kobj,&a->attr);
+ subsys_put(s);
+ }
+ return error;
+}
+
+
+/**
+ * subsystem_remove_file - remove sysfs attribute file.
+ * @s: subsystem.
+ * @a: attribute desciptor.
+ */
+
+void subsys_remove_file(struct subsystem * s, struct subsys_attribute * a)
+{
+ if (subsys_get(s)) {
+ sysfs_remove_file(&s->kobj,&a->attr);
+ subsys_put(s);
+ }
+}
+
+
EXPORT_SYMBOL(kobject_init);
EXPORT_SYMBOL(kobject_register);
EXPORT_SYMBOL(kobject_unregister);
@@ -238,3 +270,5 @@ EXPORT_SYMBOL(kobject_put);
EXPORT_SYMBOL(subsystem_init);
EXPORT_SYMBOL(subsystem_register);
EXPORT_SYMBOL(subsystem_unregister);
+EXPORT_SYMBOL(subsys_create_file);
+EXPORT_SYMBOL(subsys_remove_file);