+
+static int
+create_efivars_bin_attributes(struct efivars *efivars)
+{
+ struct bin_attribute *attr;
+ int error;
+
+ /* new_var */
+ attr = kzalloc(sizeof(*attr), GFP_KERNEL);
+ if (!attr)
+ return -ENOMEM;
+
+ attr->attr.name = "new_var";
+ attr->attr.mode = 0200;
+ attr->write = efivar_create;
+ attr->private = efivars;
+ efivars->new_var = attr;
+
+ /* del_var */
+ attr = kzalloc(sizeof(*attr), GFP_KERNEL);
+ if (!attr) {
+ error = -ENOMEM;
+ goto out_free;
+ }
+ attr->attr.name = "del_var";
+ attr->attr.mode = 0200;
+ attr->write = efivar_delete;
+ attr->private = efivars;
+ efivars->del_var = attr;
+
+ sysfs_bin_attr_init(efivars->new_var);
+ sysfs_bin_attr_init(efivars->del_var);
+
+ /* Register */
+ error = sysfs_create_bin_file(&efivars->kset->kobj,
+ efivars->new_var);
+ if (error) {
+ printk(KERN_ERR "efivars: unable to create new_var sysfs file"
+ " due to error %d\n", error);
+ goto out_free;
+ }
+ error = sysfs_create_bin_file(&efivars->kset->kobj,
+ efivars->del_var);
+ if (error) {
+ printk(KERN_ERR "efivars: unable to create del_var sysfs file"
+ " due to error %d\n", error);
+ sysfs_remove_bin_file(&efivars->kset->kobj,
+ efivars->new_var);
+ goto out_free;
+ }
+
+ return 0;
+out_free:
+ kfree(efivars->new_var);
+ efivars->new_var = NULL;
+ kfree(efivars->new_var);
+ efivars->new_var = NULL;
+ return error;
+}
+