Re: [PATCH v2] cpufreq: Make cpufreq_quick_get() safe to call.

[Rafael J. Wysocki]

On Saturday, March 12, 2016 06:52:37 AM Viresh Kumar wrote:
> On 11-03-16, 09:43, Richard Cochran wrote:
> > The function, cpufreq_quick_get, accesses the global 'cpufreq_driver' and
> > its fields without taking the associated lock, cpufreq_driver_lock.
> > 
> > Without the locking, nothing guarantees that 'cpufreq_driver' remains
> > consistent during the call.  This patch fixes the issue by taking the lock
> > before accessing the data structure.
> > 
> > Cc: Dirk Brandewie <dirk.brandewie@xxxxxxxxx>
> > Cc: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
> > Cc: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
> > Cc: linux-pm@xxxxxxxxxxxxxxx
> > Signed-off-by: Richard Cochran <rcochran@xxxxxxxxxxxxx>
> > ---
> >  drivers/cpufreq/cpufreq.c | 12 ++++++++++--
> >  1 file changed, 10 insertions(+), 2 deletions(-)
> 
> Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>

Applied, thanks!