tree 564c95082d52fe7e96a7533054fd41620a6f5636
parent e52b045fe07d7874474665c843befa7521853234
author Christian 'Ansuel' Marangi <ansuelsmth@gmail.com> 1655248187 +0200
committer Chanwoo Choi <cw00.choi@samsung.com> 1656533477 +0900

PM / devfreq: Fix cpufreq passive unregister erroring on PROBE_DEFER

With the passive governor, the cpu based scaling can PROBE_DEFER due to
the fact that CPU policy are not ready.
The cpufreq passive unregister notifier is called both from the
GOV_START errors and for the GOV_STOP and assume the notifier is
successfully registred every time. With GOV_START failing it's wrong to
loop over each possible CPU since the register path has failed for
some CPU policy not ready. Change the logic and unregister the notifer
based on the current allocated parent_cpu_data list to correctly handle
errors and the governor unregister path.

Fixes: a03dacb0316f ("PM / devfreq: Add cpu based scaling support to passive governor")
Signed-off-by: Christian 'Ansuel' Marangi <ansuelsmth@gmail.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>