Re: [PATCH 03/10] comedi: get rid of compat_alloc_user_space() mess in COMEDI_CHANINFO compat

[Ian Abbott]

On 29/05/2020 01:35, Al Viro wrote:
> From: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
>
> Just take copy_from_user() out of do_chaninfo_ioctl() into the caller and
> have compat_chaninfo() build a native version and pass it to do_chaninfo_ioctl()
> directly.
>
> Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
> ---
>   drivers/staging/comedi/comedi_fops.c | 68 ++++++++++++++++--------------------
>   1 file changed, 30 insertions(+), 38 deletions(-)

Signed-off-by: Ian Abbott <abbotti@xxxxxxxxx>

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