kernel_optimize_test/drivers/cpuidle
Daniel Lezcano 4168203271 cpuidle: move driver checking within the lock section
The code is racy and the check with cpuidle_curr_driver should be
done under the lock.

I don't find a path in the different drivers where that could happen
because the arch specific drivers are written in such way it is not
possible to register a driver while it is unregistered, except maybe
in a very improbable case when "intel_idle" and "processor_idle" are
competing. One could unregister a driver, while the other one is
registering.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-11-15 00:34:22 +01:00
..
governors cpuidle: Get typical recent sleep interval 2012-11-15 00:34:20 +01:00
coupled.c cpuidle: Prevent null pointer dereference in cpuidle_coupled_cpu_notify 2012-08-17 19:37:08 +02:00
cpuidle.c cpuidle: Set residency to 0 if target Cstate not enter 2012-11-15 00:34:20 +01:00
cpuidle.h cpuidle: fixup device.h header in cpuidle.h 2012-11-15 00:34:21 +01:00
driver.c cpuidle: move driver checking within the lock section 2012-11-15 00:34:22 +01:00
governor.c cpuidle: create bootparam "cpuidle.off=1" 2011-08-03 19:06:36 -04:00
Kconfig cpuidle: add support for states that affect multiple cpus 2012-06-02 00:49:09 -04:00
Makefile cpuidle: add support for states that affect multiple cpus 2012-06-02 00:49:09 -04:00
sysfs.c cpuidle: fixup device.h header in cpuidle.h 2012-11-15 00:34:21 +01:00