Re: [PATCH] driver core: Fix use-after-free and double free on glue directory

[Greg KH]

On Sat, May 04, 2019 at 10:47:07PM +0800, Muchun Song wrote:
> Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> ä2019å5æ2æåå äå2:25åéï
> 
> > > > The basic idea yes, the whole bool *locked is horrid though.
> > > > Wouldn't it
> > > > work to have a get_device_parent_locked that always returns with
> > > > the mutex held,
> > > > or just move the mutex to the caller or something simpler like this
> > > > ?
> > > >
> > >
> > > Greg and Rafael, do you have any suggestions for this? Or you also
> > > agree with Ben?
> >
> > Ping guys ? This is worth fixing...
> 
> I also agree with you. But Greg and Rafael seem to be high latency right now.

It's in my list of patches to get to, sorry, hopefully will dig out of
that next week with the buffer that the merge window provides me.

thanks,

greg k-h