[PATCH wayland 2/4] wl_array: Set data to null after free

[Eric Engestrom]

On Mon, Sep 19, 2016 at 11:59:03AM +0100, Eric Engestrom wrote:
> On Fri, Sep 16, 2016 at 03:37:37PM -0700, Yong Bakos wrote:
> > From: Yong Bakos <ybakos at humanoriented.com>
> > 
> > Explicitly set the data member to NULL during wl_array_release, preventing the
> > dangling pointer but, more importantly, making it testable.
> > 
> > Signed-off-by: Yong Bakos <ybakos at humanoriented.com>
> > ---
> >  src/wayland-util.c | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/src/wayland-util.c b/src/wayland-util.c
> > index 639ccf8..2efb133 100644
> > --- a/src/wayland-util.c
> > +++ b/src/wayland-util.c
> > @@ -102,6 +102,7 @@ WL_EXPORT void
> >  wl_array_release(struct wl_array *array)
> >  {
> >  	free(array->data);
> > +	array->data = NULL;
> 
> If we add
> 	array->size = 0;
> 	array->alloc = 0;
> 
> we can then remove this comment from patch #1, right?
> 	\note Leaves the array in an invalid state.

I somehow missed your cover-letter, but at least we agree :P
I guess you'll send that as an independent patch later on?

Cheers,
  Eric

> 
> The series is good anyway, so it is:
> Reviewed-by: Eric Engestrom <eric.engestrom at imgtec.com>