linux-kernel - Re: [PATCH] s390: crypto: Return -EFAULT if copy_to

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Date:   Mon, 1 Mar 2021 14:13:32 +0100
From:   Heiko Carstens <hca@...ux.ibm.com>
To:     Wang Qing <wangqing@...o.com>
Cc:     Tony Krowiak <akrowiak@...ux.ibm.com>,
        Pierre Morel <pmorel@...ux.ibm.com>,
        Halil Pasic <pasic@...ux.ibm.com>,
        Harald Freudenberger <freude@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] s390: crypto: Return -EFAULT if copy_to_user() fails

On Mon, Mar 01, 2021 at 08:08:21PM +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@...o.com>
> ---
>  drivers/s390/crypto/vfio_ap_ops.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied, thanks!