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SubjectRe: [PATCH 46/50] vt_compat_ioctl(): clean up, use compat_ptr() properly
On Thu, Sep 13, 2018 at 4:42 AM Al Viro <> wrote:
> From: Al Viro <>
> we need it for "convert the structure" cases too
> Signed-off-by: Al Viro <>

Nice catch. I introduced the mistake in commit
e92166517e3c ("tty: handle VT specific compat ioctls in vt driver"),
the original code was fine. drivers/s390/char/tty3270.c implements
some of the VT ioctls, but none that are affected by this.

At least the VT code is not usable on s390, so it did not make
a practical difference.


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