static int unix_seq_open(struct inode *inode, struct file *file)
{
	struct seq_file *seq;
	int rc = -ENOMEM;
	int *iter = kmalloc(sizeof(int), GFP_KERNEL);

	if (!iter)
		goto out;

	rc = seq_open(file, &unix_seq_ops);
	if (rc)
		goto out_kfree;

	seq	     = file->private_data;
	seq->private = iter;
	*iter = 0;
out:
	return rc;
out_kfree:
	kfree(iter);
	goto out;
}
static int unix_seq_open(struct inode *inode, struct file *file)
{
	struct seq_file *seq;
	int rc = -ENOMEM;
	int *iter = kmalloc(sizeof(int), GFP_KERNEL);

	if (!iter)
		goto out;

	rc = seq_open(file, &unix_seq_ops);
	if (rc)
		goto out_kfree;

	seq	     = file->private_data;
	seq->private = iter;
	*iter = 0;
out:
	return rc;
out_kfree:
	kfree(iter);
	goto out;
}