On Fri, Dec 7, 2012 at 11:25 PM, Alan Stern wrote:
> On Fri, 7 Dec 2012, Ming Lei wrote:
>> device_pm_lock() can prevent device_move() from being running.
>
> That wouldn't prevent problems during unbinding. Wedson is right; the
Right.
> places that lock dev->parent must save a local copy of de
On Fri, 7 Dec 2012, Ming Lei wrote:
> > I guess the question is whether the callee is allowed to call
> > device_move(), if not, we're good.
>
> Not only the callee, and other contexts can change device->parent
> too. Looks rfcomm_tty_open() which calls device_move() is called
> in open() context
On Fri, Dec 7, 2012 at 8:16 PM, Wedson Almeida Filho wrote:
>> Because device_del() will put reference count of the parent, and the patch
>> only focuses on race between probe/release and shutdown.
>
> Right. device_del() puts the reference count of the parent -- is it
> guaranteed that device_del
> Because device_del() will put reference count of the parent, and the patch
> only focuses on race between probe/release and shutdown.
Right. device_del() puts the reference count of the parent -- is it
guaranteed that device_del() won't ever reassign dev->parent though
(e.g., to NULL)? I don't t
On Fri, Dec 7, 2012 at 8:09 AM, Wedson Almeida Filho wrote:
> I don't have the setup anymore, I'll give it a shot if I ever get back it
> back.
>
> I have a question though: why do we need to get a reference to the
> parent? If the assumption is that the callee can release its reference
Because
I don't have the setup anymore, I'll give it a shot if I ever get back it back.
I have a question though: why do we need to get a reference to the
parent? If the assumption is that the callee can release its reference
to the parent, then one may also expect callees to reassign
dev->parent (e.g., b
On Thu, Dec 6, 2012 at 5:11 PM, Wedson Almeida Filho wrote:
> [Sorry for taking so long to respond, after a week of silence I
> assumed I wouldn't get any responses, plus I had moved on to other
> things.]
>
> I happen to still have the logs, the relevant part is pasted at the end.
>
> Answering s
[Sorry for taking so long to respond, after a week of silence I
assumed I wouldn't get any responses, plus I had moved on to other
things.]
I happen to still have the logs, the relevant part is pasted at the end.
Answering some of the questions: the driver is on the platform bus, in
fact, it's dr
8 matches
Mail list logo
