Re: [PATCH] char: ip2: check put_user() result

[Alan Cox]

O> -	return dumpcount;
> +	return rc ? -EFAULT : dumpcount;

This is actually at least as wrong as before.

The standards say that if you successfully return some data you should
report the bytes returned. Normally it doesn't matter much because the
data has not been 'lost' when it gets called again.

If you actually remove the data from the queue it ought to be getting
reported with a suitable length.

Alan
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/