static unsigned int
odev_poll(struct file *file, poll_table * wait)
{
	struct seq_oss_devinfo *dp;
	dp = file->private_data;
	snd_assert(dp != NULL, return 0);
	return snd_seq_oss_poll(dp, file, wait);
}
static unsigned int
odev_poll(struct file *file, poll_table * wait)
{
    struct seq_oss_devinfo *dp;
    dp = file->private_data;
    if (snd_BUG_ON(!dp))
        return -ENXIO;
    return snd_seq_oss_poll(dp, file, wait);
}