@@ -1527,6 +1527,7 @@ void unregister_efivars(struct efivars *efivars)
sysfs_remove_bin_file(&efivars->kset->kobj, efivars->del_var);
kfree(efivars->new_var);
kfree(efivars->del_var);
+ kobject_put(efivars->kobject);
kset_unregister(efivars->kset);
}
EXPORT_SYMBOL_GPL(unregister_efivars);
@@ -1558,6 +1559,13 @@ int register_efivars(struct efivars *efivars,
goto out;
}
+ efivars->kobject = kobject_create_and_add("efivars", parent_kobj);
+ if (!efivars->kobject) {
+ pr_err("efivars: Subsystem registration failed.\n");
+ error = -ENOMEM;
+ goto err_unreg_vars;
+ }
+
/*
* Per EFI spec, the maximum storage allocated for both
* the variable name and variable data is 1024 bytes.
@@ -1602,6 +1610,9 @@ int register_efivars(struct efivars *efivars,
register_filesystem(&efivarfs_type);
+err_unreg_vars:
+ kset_unregister(efivars->kset);
+
out:
kfree(variable_name);
@@ -654,6 +654,7 @@ struct efivars {
spinlock_t lock;
struct list_head list;
struct kset *kset;
+ struct kobject *kobject;
struct bin_attribute *new_var, *del_var;
const struct efivar_operations *ops;
struct efivar_entry *walk_entry;