Perry YuanandGreg Kroah-Hartman ba518c5b64 cpufreq: amd-pstate: fix kernel hang issue while amd-pstate unregistering ...

commit 4f3085f87b upstream.

In the amd_pstate_adjust_perf(), there is one cpufreq_cpu_get() call to
increase increments the kobject reference count of policy and make it as
busy. Therefore, a corresponding call to cpufreq_cpu_put() is needed to
decrement the kobject reference count back, it will resolve the kernel
hang issue when unregistering the amd-pstate driver and register the
`amd_pstate_epp` driver instance.

Fixes: 1d215f0319 ("cpufreq: amd-pstate: Add fast switch function for AMD P-State")
Acked-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Tested-by: Wyes Karny <wyes.karny@amd.com>
Signed-off-by: Perry Yuan <perry.yuan@amd.com>
Cc: 5.17+ <stable@vger.kernel.org> # 5.17+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-01-18 11:58:12 +01:00

..

acpi-cpufreq.c

cpufreq: ACPI: Add Zhaoxin/Centaur turbo boost control interface support

2022-06-29 20:14:39 +02:00

amd_freq_sensitivity.c

cpufreq: amd_freq_sensitivity: Add missing pci_dev_put()

2022-12-31 13:31:58 +01:00

amd-pstate-trace.c

cpufreq: amd-pstate: Add trace for AMD P-State module

2021-12-30 18:51:39 +01:00

amd-pstate-trace.h

cpufreq: amd-pstate: Add more tracepoint for AMD P-State module

2022-03-09 19:53:01 +01:00

amd-pstate-ut.c

cpufreq: amd-pstate: modify type in argument 2 for filp_open

2022-10-05 11:05:18 -06:00

amd-pstate.c

cpufreq: amd-pstate: fix kernel hang issue while amd-pstate unregistering

2023-01-18 11:58:12 +01:00

armada-8k-cpufreq.c

…

armada-37xx-cpufreq.c

cpufreq: armada-37xx: forbid cpufreq for 1.2 GHz variant

2021-08-09 09:31:22 +05:30

bmips-cpufreq.c

cpufreq: bmips-cpufreq: Use module_init and add module_exit

2022-08-30 13:49:23 +05:30

brcmstb-avs-cpufreq.c

…

cppc_cpufreq.c

ACPI: CPPC: Disable FIE if registers in PCC regions

2022-09-24 18:43:46 +02:00

cpufreq_conservative.c

cpufreq: unify show() and store() naming and use __ATTR_XX

2022-03-10 19:55:05 +01:00

cpufreq_governor_attr_set.c

cpufreq: Move to_gov_attr_set() to cpufreq.h

2022-02-04 19:22:34 +01:00

cpufreq_governor.c

cpufreq: governor: Use kobject release() method to free dbs_data

2022-04-13 15:22:41 +02:00

cpufreq_governor.h

cpufreq: governor: Use kobject release() method to free dbs_data

2022-04-13 15:22:41 +02:00

cpufreq_ondemand.c

cpufreq: ondemand: Use cpumask_var_t for on-stack cpu mask

2022-07-25 20:38:01 +02:00

cpufreq_ondemand.h

…

cpufreq_performance.c

…

cpufreq_powersave.c

…

cpufreq_stats.c

…

cpufreq_userspace.c

…

cpufreq-dt-platdev.c

cpufreq: Add SM6115 to cpufreq-dt-platdev blocklist

2022-08-16 10:50:49 +05:30

cpufreq-dt.c

cpufreq: dt: Switch to use dev_err_probe() helper

2022-10-18 16:22:25 +05:30

cpufreq-dt.h

…

cpufreq-nforce2.c

…

cpufreq.c

cpufreq: Init completion before kobject_init_and_add()

2023-01-07 11:11:40 +01:00

davinci-cpufreq.c

…

e_powersaver.c

…

elanfreq.c

…

freq_table.c

…

gx-suspmod.c

…

highbank-cpufreq.c

cpufreq: Add __init annotation to module init funcs

2022-09-26 11:15:04 +05:30

ia64-acpi-cpufreq.c

…

imx6q-cpufreq.c

cpufreq: imx6q: Switch to use dev_err_probe() helper

2022-10-18 16:22:25 +05:30

imx-cpufreq-dt.c

OPP: Migrate set-supported-hw API to use set-config helpers

2022-07-08 11:27:48 +05:30

intel_pstate.c

cpufreq: intel_pstate: hybrid: Use known scaling factor for P-cores

2022-10-25 15:09:23 +02:00

Kconfig

cpufreq: loongson2: fix Kconfig "its" grammar

2022-07-25 20:34:56 +02:00

Kconfig.arm

nvmem: prefix all symbols with NVMEM_

2022-09-24 14:54:38 +02:00

Kconfig.powerpc

…

Kconfig.x86

cpufreq: amd-pstate: change amd-pstate driver to be built-in type

2022-11-22 19:57:15 +01:00

kirkwood-cpufreq.c

…

longhaul.c

cpufreq: longhaul: Replace acpi_bus_get_device()

2022-02-04 19:31:49 +01:00

longhaul.h

…

longrun.c

…

loongson1-cpufreq.c

…

loongson2_cpufreq.c

…

Makefile

cpufreq: amd-pstate: Add test module for amd-pstate driver

2022-10-05 11:05:17 -06:00

maple-cpufreq.c

…

mediatek-cpufreq-hw.c

PM: EM: convert power field to micro-Watts precision and align drivers

2022-07-15 19:17:30 +02:00

mediatek-cpufreq.c

cpufreq: mediatek: fix error return code in mtk_cpu_dvfs_info_init()

2022-07-13 16:53:00 +05:30

mvebu-cpufreq.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2)

2022-06-10 14:51:35 +02:00

omap-cpufreq.c

cpufreq: omap: Use .register_em() to register with energy model

2021-08-12 09:54:07 +05:30

p4-clockmod.c

…

pasemi-cpufreq.c

cpufreq: Prepare cleanup of powerpc's asm/prom.h

2022-04-13 17:18:45 +02:00

pcc-cpufreq.c

…

pmac32-cpufreq.c

cpufreq: pmac32-cpufreq: Fix refcount leak bug

2022-06-28 13:34:51 +05:30

pmac64-cpufreq.c

cpufreq: Prepare cleanup of powerpc's asm/prom.h

2022-04-13 17:18:45 +02:00

powernow-k6.c

…

powernow-k7.c

…

powernow-k7.h

…

powernow-k8.c

cpufreq: powernow-k8: Re-order the init checks

2022-03-17 14:54:11 +01:00

powernow-k8.h

…

powernv-cpufreq.c

cpufreq: Introducing CPUFREQ_RELATION_E

2021-10-05 16:33:05 +02:00

ppc_cbe_cpufreq_pervasive.c

…

ppc_cbe_cpufreq_pmi.c

cpufreq: Prepare cleanup of powerpc's asm/prom.h

2022-04-13 17:18:45 +02:00

ppc_cbe_cpufreq.c

cpufreq: Prepare cleanup of powerpc's asm/prom.h

2022-04-13 17:18:45 +02:00

ppc_cbe_cpufreq.h

…

pxa2xx-cpufreq.c

cpufreq: pxa3: move clk register access to clk driver

2022-05-07 22:55:49 +02:00

pxa3xx-cpufreq.c

cpufreq: pxa3: move clk register access to clk driver

2022-05-07 22:55:49 +02:00

qcom-cpufreq-hw.c

cpufreq: qcom-hw: Fix the frequency returned by cpufreq_driver->get()

2022-12-31 13:31:56 +01:00

qcom-cpufreq-nvmem.c

cpufreq: qcom-nvmem: Switch to use dev_err_probe() helper

2022-10-18 16:22:26 +05:30

qoriq-cpufreq.c

drivers: cpufreq: Add missing of_node_put() in qoriq-cpufreq.c

2022-06-28 13:34:45 +05:30

raspberrypi-cpufreq.c

…

s3c24xx-cpufreq-debugfs.c

…

s3c24xx-cpufreq.c

…

s3c64xx-cpufreq.c

…

s3c2410-cpufreq.c

…

s3c2412-cpufreq.c

…

s3c2416-cpufreq.c

…

s3c2440-cpufreq.c

cpufreq: s3c244x: add fallthrough comments for switch

2021-10-04 11:43:14 +05:30

s5pv210-cpufreq.c

cpufreq: Introducing CPUFREQ_RELATION_E

2021-10-05 16:33:05 +02:00

sa1100-cpufreq.c

…

sa1110-cpufreq.c

…

sc520_freq.c

…

scmi-cpufreq.c

cpufreq: scmi: Support the power scale in micro-Watts in SCMI v3.1

2022-07-15 19:17:30 +02:00

scpi-cpufreq.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_320.RULE

2022-06-10 14:51:36 +02:00

sh-cpufreq.c

cpufreq: sh: Remove sh_cpufreq_cpu_ready()

2021-09-02 18:04:17 +02:00

sparc-us2e-cpufreq.c

…

sparc-us3-cpufreq.c

…

spear-cpufreq.c

…

speedstep-centrino.c

…

speedstep-ich.c

…

speedstep-lib.c

…

speedstep-lib.h

…

speedstep-smi.c

…

sti-cpufreq.c

cpufreq: Add __init annotation to module init funcs

2022-09-26 11:15:04 +05:30

sun50i-cpufreq-nvmem.c

cpufreq: sun50i: Switch to use dev_err_probe() helper

2022-10-18 16:22:26 +05:30

tegra20-cpufreq.c

OPP: Migrate set-supported-hw API to use set-config helpers

2022-07-08 11:27:48 +05:30

tegra124-cpufreq.c

…

tegra186-cpufreq.c

cpufreq: tegra186/tegra194: Handle errors in BPMP response

2021-10-04 12:31:36 +05:30

tegra194-cpufreq.c

cpufreq: tegra194: Fix module loading

2022-10-18 16:22:25 +05:30

ti-cpufreq.c

cpufreq: Add __init annotation to module init funcs

2022-09-26 11:15:04 +05:30

vexpress-spc-cpufreq.c

cpufreq: vexpress: Drop unused variable

2021-10-04 11:25:21 +05:30