efivars: handle errors from register_efivars()

index ff2fe40..5d1ec68 100644
@@ -803,6 +803,8 @@ efivars_init(void)
 	ops.set_variable = efi.set_variable;
 	ops.get_next_variable = efi.get_next_variable;
 	error = register_efivars(&__efivars, &ops, efi_kobj);
+	if (error)
+		goto err_put;
 
 	/* Don't forget the systab entry */
 	error = sysfs_create_group(efi_kobj, &efi_subsys_attr_group);

@@ -810,10 +812,15 @@ efivars_init(void)
 		printk(KERN_ERR
 		       "efivars: Sysfs attribute export failed with error %d.\n",
 		       error);
-		unregister_efivars(&__efivars);
-		kobject_put(efi_kobj);
+		goto err_unregister;
 	}
 
+	return 0;
+
+err_unregister:
+	unregister_efivars(&__efivars);
+err_put:
+	kobject_put(efi_kobj);
 	return error;
 }