Re: [PATCH V2] staging: dgnc: take lock when storing value in dgnc_poll_tick

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On Mon, Aug 24, 2015 at 06:16:21PM +0530, Sudip Mukherjee wrote:
> On Wed, Aug 19, 2015 at 07:11:55PM +0100, Salah Triki wrote:
> > poll_tick is declared global, so dgnc_driver_pollrate_store needs to take
> > the lock dgnc_poll_lock before modifying this variable. dgnc_poll_lock is
> > the appropriate lock, since it is intended for poll scheduling and
> > dgnc_poll_tick contains the poll rate. dgnc_poll_lock needs to be declared
> > not static and extern in order to be visible for dgnc_driver_pollrate_store.
> > 
> > Signed-off-by: Salah Triki <salah.triki@xxxxxxx>
> > ---
> <snip>
> > +
> > +	spin_lock_irqsave(&dgnc_poll_lock, flags);
> > +	dgnc_poll_tick = tick;
> > +	spin_unlock_irqstore(&dgnc_poll_lock, flags);
> Have you build tested it?
> 
> regards
> sudip

no

regards
--
salah triki
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