- struct seq_file *seq;
- struct iter_state *is;
- int ret;
-
- is = kzalloc(sizeof(*is), GFP_KERNEL);
- if (!is)
- return -ENOMEM;
- ret = seq_open(file, &nfqnl_seq_ops);
- if (ret < 0)
- goto out_free;
- seq = file->private_data;
- seq->private = is;
- return ret;
-out_free:
- kfree(is);
- return ret;
+ return seq_open_private(file, &nfqnl_seq_ops,
+ sizeof(struct iter_state));