svn commit: r289450 - head/lib/libcam

[NGie Cooper]

> On Oct 17, 2015, at 02:07, Garrett Cooper <ngie at FreeBSD.org> wrote:
> 
> Author: ngie
> Date: Sat Oct 17 09:07:53 2015
> New Revision: 289450
> URL: https://svnweb.freebsd.org/changeset/base/289450
> 
> Log:
>  Set dev->fd to -1 when calling cam_close_spec_device with a valid dev->fd
>  descriptor to avoid trashing valid file descriptors that access dev->fd at a
>  later point in time

That wasn’t a good description — sorry :(.

The cam_close_spec_device API doesn’t free `struct cam_device *dev` by design, so something could reuse the structure, or call close on dev->fd (out of band), which could trash valid file descriptor(s) by accident.

Thanks!
-NGie