[PATCH v5 0/6] cpufreq: use __free() for all cpufreq_cpu_get() references

[Zihuan Zhang]

This patchset converts all remaining cpufreq users to rely on the
__free(put_cpufreq_policy) annotation for policy references, instead of
calling cpufreq_cpu_put() manually.

Motivation:
- Reduce the chance of reference counting mistakes
- Make the code more consistent with the latest kernel style
- behavior remains the same, but reference counting is now safer 
  and easier to maintain.

The changes are split into 6 patches as they touch different subsystems
and are maintained by different people. There is no functional change.

V5:
 - drop 4 patches
 - change return value int topology.c suggested by Jonathan Cameron
 - fix code in processor_thermal.c suggested by Rafael and Jonathan Cameron
 - fix code in intel_pstate.c suggested by Rafael
 - fix code in governor_passive.c suggested Jonathan Cameron
 - fix code in energy_model.c suggested by Rafael and Krzysztof Kozlowski

V4:
 - Fix compile error in topology.c
 - drop 2 patches
 - Move code into a function in processor_thermal.c
 - Move code into a function in intel_pstate.c
 - Move policy declare in dtpm_cpu.c
 - Fix compile error in imx_thermal.c
 - Fix compile error in ti-thermal-common.c
 - Fix compile error in energy_model.c

V3:
 - drop patch 'KVM: x86: Use __free(put_cpufreq_policy) for policy reference'
 - removed 5 patches which has been applied
 - Consolidate CPUFreq policy assignments and allocations into one line,
   suggested by Ben Horgan
 - Change cpu_has_cpufreq() return type to bool, following Rafael's suggestion
 - Change the title to 'Use scope-based cleanup helper'

V2:
 - Fix compile error in powernv-cpufreq.c
 - Split patch to separate logical changes

Zihuan Zhang (6):
  arm64: topology: Use scope-based cleanup helper
  ACPI: processor: thermal: Use scope-based cleanup helper
  cpufreq: intel_pstate: Use scope-based cleanup helper
  PM / devfreq: Use scope-based cleanup helper
  drm/i915: Use scope-based cleanup helper
  PM: EM: Use scope-based cleanup helper

 arch/arm64/kernel/topology.c        | 11 ++----
 drivers/acpi/processor_thermal.c    | 52 +++++++++++++------------
 drivers/cpufreq/intel_pstate.c      | 59 +++++++++++++++-------------
 drivers/devfreq/governor_passive.c  | 60 +++++++++++------------------
 drivers/gpu/drm/i915/gt/intel_llc.c |  4 +-
 kernel/power/energy_model.c         |  9 +----
 6 files changed, 89 insertions(+), 106 deletions(-)

-- 
2.25.1