Re: [PATCH 1/2] staging: vc04_services: Fix unportable cast in vchiq_copy_from_user

From: Dan Carpenter
Date: Mon Oct 24 2016 - 07:36:31 EST


On Mon, Oct 24, 2016 at 04:09:37AM -0700, Michael Zoran wrote:
> I didn't think it looked totally correct, but I'm not sure it's any
> more broken then what is already in the tree.

It's not more broken. But better to leave the compile warning there to
mark that it is an obvious security problem.

>
> If you can kindly point me to some other source code or documentation
> to look at that is correct, I'm more then willing to fix the patch.
>

I was hoping the maintainers could chip in, because I didn't want to
look at the code. We really need to track which are use pointers and
which are kernel pointers. We can't mix them like this.

regards,
dan carpenter