On Sun, Nov 18, 2012 at 1:41 AM, Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>> If not, what would be the right fix?
>
> Properly define out_err.
>
> I thought this all got fixed up recently, what kernel version are you
> looking at?
>
That might explain why I'm seeing this.

Because I'm building the kernel I checked out from
git://github.com/torvalds/linux.git, currently at commit f4a75d2e
(Linux 3.7-rc6).