Re: [PATCH 17/29] drivers, pci: convert hv_pci_dev.refs from atomic_t to refcount_t

[Stephen Hemminger]

On Mon, 6 Mar 2017 15:38:29 -0600
Bjorn Helgaas <helgaas@xxxxxxxxxx> wrote:

> [+cc Hyper-V folks, -cc others]
> 
> On Mon, Mar 06, 2017 at 04:21:04PM +0200, Elena Reshetova wrote:
> > refcount_t type and corresponding API should be
> > used instead of atomic_t when the variable is used as
> > a reference counter. This allows to avoid accidental
> > refcounter overflows that might lead to use-after-free
> > situations.
> > 
> > Signed-off-by: Elena Reshetova <elena.reshetova@xxxxxxxxx>
> > Signed-off-by: Hans Liljestrand <ishkamiel@xxxxxxxxx>
> > Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
> > Signed-off-by: David Windsor <dwindsor@xxxxxxxxx>


Reviewed-by: Stephen Hemminger <sthemmin@xxxxxxxxxxxxx>