Shawn Guo 8575c98224 cpuidle: psci: Iterate backwards over list in psci_pd_remove() ... commit 6b0313c2fa upstream. In case that psci_pd_init_topology() fails for some reason, psci_pd_remove() will be responsible for deleting provider and removing genpd from psci_pd_providers list. There will be a failure when removing the cluster PD, because the cpu (child) PDs haven't been removed. [ 0.050232] CPUidle PSCI: init PM domain cpu0 [ 0.050278] CPUidle PSCI: init PM domain cpu1 [ 0.050329] CPUidle PSCI: init PM domain cpu2 [ 0.050370] CPUidle PSCI: init PM domain cpu3 [ 0.050422] CPUidle PSCI: init PM domain cpu-cluster0 [ 0.050475] PM: genpd_remove: unable to remove cpu-cluster0 [ 0.051412] PM: genpd_remove: removed cpu3 [ 0.051449] PM: genpd_remove: removed cpu2 [ 0.051499] PM: genpd_remove: removed cpu1 [ 0.051546] PM: genpd_remove: removed cpu0 Fix the problem by iterating the provider list reversely, so that parent PD gets removed after child's PDs like below. [ 0.029052] CPUidle PSCI: init PM domain cpu0 [ 0.029076] CPUidle PSCI: init PM domain cpu1 [ 0.029103] CPUidle PSCI: init PM domain cpu2 [ 0.029124] CPUidle PSCI: init PM domain cpu3 [ 0.029151] CPUidle PSCI: init PM domain cpu-cluster0 [ 0.029647] PM: genpd_remove: removed cpu0 [ 0.029666] PM: genpd_remove: removed cpu1 [ 0.029690] PM: genpd_remove: removed cpu2 [ 0.029714] PM: genpd_remove: removed cpu3 [ 0.029738] PM: genpd_remove: removed cpu-cluster0 Fixes: a65a397f24 ("cpuidle: psci: Add support for PM domains by using genpd") Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: 5.10+ <stable@vger.kernel.org> # 5.10+ Signed-off-by: Rafael J. Wysocki <rjw@rjwysocki.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-03-22 13:31:36 +01:00
..
governors	cpuidle: teo: Rename two local variables in teo_select()	2021-08-03 15:18:57 +02:00
Kconfig	cpuidle: Fix Kconfig indentation	2019-11-29 11:47:35 +01:00
Kconfig.arm	cpuidle: Fix ARM_QCOM_SPM_CPUIDLE configuration	2021-04-08 19:54:14 +02:00
Kconfig.mips	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Kconfig.powerpc	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	cpuidle: psci: Split into two separate build objects	2020-07-29 18:38:30 +02:00
coupled.c	smp: Cleanup smp_call_function*()	2020-11-24 16:47:49 +01:00
cpuidle-arm.c	thermal: cpuidle: Register cpuidle cooling device	2020-05-19 12:58:07 +02:00
cpuidle-at91.c	drivers/cpuidle: Convert non-modular drivers to use builtin_platform_driver	2015-06-16 14:12:38 -04:00
cpuidle-big_little.c	cpuidle: big.LITTLE: enable driver only on Peach-Pit/Pi Chromebooks	2020-10-26 10:15:24 +01:00
cpuidle-calxeda.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201	2019-05-30 11:29:52 -07:00
cpuidle-clps711x.c	cpuidle: clps711x: convert to devm_platform_ioremap_resource()	2019-12-20 10:04:27 +01:00
cpuidle-cps.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
cpuidle-exynos.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
cpuidle-haltpoll.c	cpuidle-haltpoll: Fix small typo	2020-04-08 14:35:45 +02:00
cpuidle-kirkwood.c	cpuidle: kirkwood: convert to devm_platform_ioremap_resource()	2019-12-20 10:05:44 +01:00
cpuidle-mvebu-v7.c	cpuidle: mvebu: disable the bind/unbind attributes and use builtin_platform_driver	2015-10-23 12:40:48 +02:00
cpuidle-powernv.c	powerpc/powernv/idle: add a basic stop 0-3 driver for POWER10	2020-09-15 22:13:38 +10:00
cpuidle-psci-domain.c	cpuidle: psci: Iterate backwards over list in psci_pd_remove()	2023-03-22 13:31:36 +01:00
cpuidle-psci.c	cpuidle: PSCI: Improve support for suspend-to-RAM for PSCI OSI mode	2022-06-09 10:22:33 +02:00
cpuidle-psci.h	cpuidle: psci: Fix error path via converting to a platform driver	2020-07-29 18:38:30 +02:00
cpuidle-pseries.c	cpuidle: pseries: Mark pseries_idle_proble() as __init	2021-08-04 10:53:38 +10:00
cpuidle-qcom-spm.c	cpuidle: qcom: Add SPM register data for MSM8226	2021-06-16 20:03:26 +02:00
cpuidle-tegra.c	cpuidle: tegra: Remove do_idle firmware call	2021-04-08 19:54:14 +02:00
cpuidle-ux500.c	mfd/cpuidle: ux500: Rename driver symbol	2021-08-16 13:42:34 +01:00
cpuidle-zynq.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201	2019-05-30 11:29:52 -07:00
cpuidle.c	cpuidle: Select polling interval based on a c-state with a longer target residency	2020-12-01 17:59:18 +01:00
cpuidle.h	cpuidle: allow governor switch on cpuidle_register_driver()	2019-09-11 17:36:30 +02:00
driver.c	cpuidle: Use s64 as exit_latency_ns and target_residency_ns data type	2021-04-07 19:26:44 +02:00
dt_idle_states.c	cpuidle: dt: Return the correct numbers of parsed idle states	2022-12-31 13:14:01 +01:00
dt_idle_states.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
governor.c	cpuidle: Call cpu_latency_qos_limit() instead of pm_qos_request()	2020-02-13 11:26:57 +01:00
poll_state.c	cpuidle: Drop disabled field from struct cpuidle_state	2019-11-29 11:48:39 +01:00
sysfs.c	cpuidle: Fix kobject memory leaks in error paths	2021-11-18 19:16:29 +01:00