Re: [PATCH] cxl/mem: return -EFAULT if copy_to_user() fails

From: Dan Williams
Date: Fri Feb 19 2021 - 10:40:19 EST


On Fri, Feb 19, 2021 at 1:55 AM Dan Carpenter <dan.carpenter@xxxxxxxxxx> wrote:
>
> The copy_to_user() function returns the number of bytes remaining to be
> copied, but we want to return -EFAULT if the copy doesn't complete.
>
> Fixes: b754ffbbc0ee ("cxl/mem: Add basic IOCTL interface")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> ---

Looks good, Dan, thanks!