Re: [PATCH] random: convert to using fops->write_iter()

[Jason A. Donenfeld]

Hi Jens,

On Thu, May 19, 2022 at 05:43:15PM -0600, Jens Axboe wrote:
> -static int write_pool(const char __user *ubuf, size_t len)
> +static size_t write_pool(struct iov_iter *iter)
>  {
>  	size_t block_len;
>  	int ret = 0;

Changing the return value to size_t isn't quite right, as this can
return -EFAULT. So at the very minimum, it should return a ssize_t.

Jason