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

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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



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