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linux/drivers/thermal
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Steven Rostedt ace120dcf2 Thermal: Fix lockup of cpu_down() 
Commit f1a18a105 "Thermal: CPU Package temperature thermal" had code
that did a get_online_cpus(), run a loop and then do a
put_online_cpus(). The problem is that the loop had an error exit that
would skip the put_online_cpus() part.

In the error exit part of the function, it also did a get_online_cpus(),
run a loop and then put_online_cpus(). The only way to get to the error
exit part is with get_online_cpus() already performed. If this error
condition is hit, the system will be prevented from taking CPUs offline.
The process taking the CPU offline will lock up hard.

Removing the get_online_cpus() removes the lockup as the hotplug CPU
refcount is back to zero.

This was bisected with ktest.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-07-22 09:34:46 +08:00
..
ti-soc-thermal thermal: ti-soc-thermal: use standard GPIO DT bindings 2013-07-08 10:11:59 -04:00
armada_thermal.c Merge branches 'misc', 'drv_cleanup', 'devm-cleanup' and 'ti-soc' of .git into next 2013-05-28 10:46:46 +08:00
cpu_cooling.c thermal: cpu_cooling: fix 'descend' check in get_property() 2013-05-28 14:49:31 +08:00
db8500_cpufreq_cooling.c
db8500_thermal.c
dove_thermal.c Merge branches 'misc', 'drv_cleanup', 'devm-cleanup' and 'ti-soc' of .git into next 2013-05-28 10:46:46 +08:00
exynos_thermal.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2013-07-11 12:26:08 -07:00
fair_share.c
intel_powerclamp.c
Kconfig Merge branch 'cpu-package-thermal' of .git into next 2013-06-18 07:26:49 +08:00
kirkwood_thermal.c Merge branches 'misc', 'drv_cleanup', 'devm-cleanup' and 'ti-soc' of .git into next 2013-05-28 10:46:46 +08:00
Makefile Merge branch 'cpu-package-thermal' of .git into next 2013-06-18 06:31:26 +08:00
rcar_thermal.c Merge branches 'misc', 'drv_cleanup', 'devm-cleanup' and 'ti-soc' of .git into next 2013-05-28 10:46:46 +08:00
spear_thermal.c Merge branches 'misc', 'drv_cleanup', 'devm-cleanup' and 'ti-soc' of .git into next 2013-05-28 10:46:46 +08:00
step_wise.c
thermal_core.c Merge branches 'for-rc' and 'ti-soc' of .git into next 2013-06-13 11:19:36 +08:00
thermal_core.h
user_space.c
x86_pkg_temp_thermal.c Thermal: Fix lockup of cpu_down() 2013-07-22 09:34:46 +08:00