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!