Re: [PATCH] s390: cio: Return -EFAULT if copy_to_user() fails

[Eric Farman]

On 3/1/21 8:13 AM, Heiko Carstens wrote:
> On Mon, Mar 01, 2021 at 08:01:33PM +0800, Wang Qing 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.
> >
> > Signed-off-by: Wang Qing <wangqing@xxxxxxxx>
> > ---
> >   drivers/s390/cio/vfio_ccw_ops.c | 4 ++--
> >   1 file changed, 2 insertions(+), 2 deletions(-)
>
> Applied, thanks!

There's a third copy_to_user() call in this same routine, that deserves 
the same treatment. I'll get that fixup applied.

Thanks,
Eric