kset: convert efivars to use kset_create for the vars sub-subsystem.
Dynamically create the kset instead of declaring it statically.
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Matt Domsch <Matt_Domsch@dell.com>
Cc: Matt Tolentino <matthew.e.tolentino@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c
index 018ca1c..e17cd81 100644
--- a/drivers/firmware/efivars.c
+++ b/drivers/firmware/efivars.c
@@ -572,7 +572,7 @@
};
-static decl_subsys(vars, NULL);
+static struct kset *vars_kset;
static struct kset *efi_kset;
/*
@@ -618,7 +618,7 @@
efi_guid_unparse(vendor_guid, short_name + strlen(short_name));
kobject_set_name(&new_efivar->kobj, "%s", short_name);
- new_efivar->kobj.kset = &vars_subsys;
+ new_efivar->kobj.kset = vars_kset;
new_efivar->kobj.ktype = &efivar_ktype;
i = kobject_register(&new_efivar->kobj);
if (i) {
@@ -675,12 +675,10 @@
goto out_free;
}
- vars_subsys.kobj.kset = efi_kset;
-
- error = subsystem_register(&vars_subsys);
-
- if (error) {
- printk(KERN_ERR "efivars: Subsystem registration failed with error %d.\n", error);
+ vars_kset = kset_create_and_add("vars", NULL, &efi_kset->kobj);
+ if (!vars_kset) {
+ printk(KERN_ERR "efivars: Subsystem registration failed.\n");
+ error = -ENOMEM;
goto out_firmware_unregister;
}
@@ -715,12 +713,12 @@
* Now add attributes to allow creation of new vars
* and deletion of existing ones...
*/
- error = sysfs_create_bin_file(&vars_subsys.kobj,
+ error = sysfs_create_bin_file(&vars_kset->kobj,
&var_subsys_attr_new_var);
if (error)
printk(KERN_ERR "efivars: unable to create new_var sysfs file"
" due to error %d\n", error);
- error = sysfs_create_bin_file(&vars_subsys.kobj,
+ error = sysfs_create_bin_file(&vars_kset->kobj,
&var_subsys_attr_del_var);
if (error)
printk(KERN_ERR "efivars: unable to create del_var sysfs file"
@@ -733,7 +731,7 @@
else
goto out_free;
- subsystem_unregister(&vars_subsys);
+ kset_unregister(vars_kset);
out_firmware_unregister:
kset_unregister(efi_kset);
@@ -756,7 +754,7 @@
efivar_unregister(entry);
}
- subsystem_unregister(&vars_subsys);
+ kset_unregister(vars_kset);
kset_unregister(efi_kset);
}