Messages in this thread | | | Date | Sat, 12 Mar 2016 06:52:37 +0700 | From | Viresh Kumar <> | Subject | Re: [PATCH v2] cpufreq: Make cpufreq_quick_get() safe to call. |
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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@gmail.com> > Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> > Cc: Viresh Kumar <viresh.kumar@linaro.org> > Cc: linux-pm@vger.kernel.org > Signed-off-by: Richard Cochran <rcochran@linutronix.de> > --- > drivers/cpufreq/cpufreq.c | 12 ++++++++++-- > 1 file changed, 10 insertions(+), 2 deletions(-)
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
-- viresh
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