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linux-5.4.y
linux/drivers/cpufreq
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Dennis Beier b02352dd2e cpufreq/longhaul: handle NULL policy in longhaul_exit 
[ Upstream commit 592532a77b ]

longhaul_exit() was calling cpufreq_cpu_get(0) without checking
for a NULL policy pointer. On some systems, this could lead to a
NULL dereference and a kernel warning or panic.

This patch adds a check using unlikely() and returns early if the
policy is NULL.

Bugzilla: #219962

Signed-off-by: Dennis Beier <nanovim@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-03 12:45:07 +01:00
..
acpi-cpufreq.c
x86/devicetable: Move x86 specific macro out of generic code
2022-10-07 09:16:54 +02:00
amd_freq_sensitivity.c
cpufreq: amd_freq_sensitivity: Add missing pci_dev_put()
2023-01-18 11:40:55 +01:00
arm_big_little.c
cpufreq: arm_big_little: Register an Energy Model
2019-02-07 09:55:11 +05:30
arm_big_little.h
…
armada-8k-cpufreq.c
cpufreq: armada-8k: Fix off by one in armada_8k_cpufreq_free_table()
2025-08-28 16:21:30 +02:00
armada-37xx-cpufreq.c
cpufreq: armada-37xx: stop using 0 as NULL pointer
2023-02-06 07:52:41 +01:00
bmips-cpufreq.c
cpufreq: Make cpufreq_generic_init() return void
2019-07-16 10:20:11 +02:00
brcmstb-avs-cpufreq.c
cpufreq: brcmstb-avs-cpufreq: Fix -Warray-bounds bug
2023-09-23 10:59:56 +02:00
cppc_cpufreq.c
cpufreq: Avoid creating excessively large stack frames
2020-02-11 04:35:25 -08:00
cpufreq_conservative.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq_governor_attr_set.c
cpufreq: schedutil: Destroy mutex before kobject_put() frees the memory
2021-10-06 15:42:30 +02:00
cpufreq_governor.c
cpufreq: governor: Fix negative 'idle_time' handling in dbs_update()
2025-04-10 14:29:39 +02:00
cpufreq_governor.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq_ondemand.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq_ondemand.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq_performance.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq_powersave.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq_stats.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq_userspace.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq-dt-platdev.c
cpufreq: Add Tegra234 to cpufreq-dt-platdev blocklist
2023-02-06 07:52:41 +01:00
cpufreq-dt.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq-dt.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpufreq-nforce2.c
cpufreq: Avoid creating excessively large stack frames
2020-02-11 04:35:25 -08:00
cpufreq.c
cpufreq: Exit governor when failed to start old governor
2025-08-28 16:21:25 +02:00
davinci-cpufreq.c
Merge branch 'pm-cpufreq'
2019-07-18 09:49:30 +02:00
e_powersaver.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
elanfreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
freq_table.c
cpufreq: Avoid creating excessively large stack frames
2020-02-11 04:35:25 -08:00
gx-suspmod.c
cpufreq: Avoid creating excessively large stack frames
2020-02-11 04:35:25 -08:00
highbank-cpufreq.c
cpufreq: highbank: Add missing MODULE_DEVICE_TABLE
2020-12-30 11:51:19 +01:00
ia64-acpi-cpufreq.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
imx6q-cpufreq.c
cpufreq: imx6q: Don't disable 792 Mhz OPP unnecessarily
2023-12-08 08:44:28 +01:00
imx-cpufreq-dt.c
cpufreq: imx-cpufreq-dt: Correct i.MX8MN's default speed grade value
2019-12-13 08:43:28 +01:00
intel_pstate.c
cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()
2025-10-29 13:59:52 +01:00
Kconfig
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
Kconfig.arm
cpufreq: ap806: fix cpufreq driver needs ap cpu clk
2020-08-19 08:16:18 +02:00
Kconfig.powerpc
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
Kconfig.x86
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
kirkwood-cpufreq.c
cpufreq: Make cpufreq_generic_init() return void
2019-07-16 10:20:11 +02:00
longhaul.c
cpufreq/longhaul: handle NULL policy in longhaul_exit
2025-12-03 12:45:07 +01:00
longhaul.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
longrun.c
cpufreq: Avoid creating excessively large stack frames
2020-02-11 04:35:25 -08:00
loongson1-cpufreq.c
cpufreq: loongson1: Add missing MODULE_ALIAS
2020-12-30 11:51:20 +01:00
loongson2_cpufreq.c
cpufreq: loongson2: Unregister platform_driver on failure
2024-12-14 19:44:29 +01:00
Makefile
Merge branch 'cpufreq/qcom-updates' into cpufreq/arm/linux-next
2019-09-03 07:55:22 +05:30
maple-cpufreq.c
Merge branch 'pm-cpufreq'
2019-07-18 09:49:30 +02:00
mediatek-cpufreq.c
cpufreq: mediatek: Add missing MODULE_DEVICE_TABLE
2020-12-30 11:51:19 +01:00
mvebu-cpufreq.c
cpufreq: mvebu: Remove OPPs using dev_pm_opp_remove()
2018-09-19 14:56:44 -07:00
omap-cpufreq.c
Merge branch 'pm-cpufreq'
2019-07-18 09:49:30 +02:00
p4-clockmod.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
pasemi-cpufreq.c
cpufreq/pasemi: fix use-after-free in pas_cpufreq_cpu_init()
2019-07-23 09:49:10 +02:00
pcc-cpufreq.c
cpufreq: Avoid creating excessively large stack frames
2020-02-11 04:35:25 -08:00
pmac32-cpufreq.c
cpufreq: pmac32-cpufreq: Fix refcount leak bug
2022-07-21 20:59:24 +02:00
pmac64-cpufreq.c
Merge branch 'pm-cpufreq'
2019-07-18 09:49:30 +02:00
powernow-k6.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
powernow-k7.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
powernow-k7.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
powernow-k8.c
cpufreq: powernow-k8: Use related_cpus instead of cpus in driver.exit()
2023-09-23 10:59:41 +02:00
powernow-k8.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 347
2019-06-05 17:37:08 +02:00
powernv-cpufreq.c
cpufreq: powernv: Fix init_chip_info initialization in numa=off
2021-09-22 12:26:37 +02:00
ppc_cbe_cpufreq_pervasive.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 153
2019-05-30 11:26:32 -07:00
ppc_cbe_cpufreq_pmi.c
cpufreq: Use per-policy frequency QoS
2019-10-21 02:05:21 +02:00
ppc_cbe_cpufreq.c
cpufreq: powerpc_cbe: Switch to QoS requests for freq limits
2019-08-26 10:02:01 +02:00
ppc_cbe_cpufreq.h
cpufreq: powerpc_cbe: Switch to QoS requests for freq limits
2019-08-26 10:02:01 +02:00
pxa2xx-cpufreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
pxa3xx-cpufreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
qcom-cpufreq-hw.c
cpufreq: qcom-hw: invoke frequency-invariance setter function
2019-08-22 11:31:04 +05:30
qcom-cpufreq-nvmem.c
cpufreq: qcom: Add missing MODULE_DEVICE_TABLE
2020-12-30 11:51:19 +01:00
qoriq-cpufreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
raspberrypi-cpufreq.c
cpufreq: add driver for Raspberry Pi
2019-06-13 08:58:22 +05:30
s3c24xx-cpufreq-debugfs.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
s3c24xx-cpufreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
s3c64xx-cpufreq.c
cpufreq: s3c64xx: Fix compilation warning
2025-03-13 12:43:06 +01:00
s3c2410-cpufreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
s3c2412-cpufreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
s3c2416-cpufreq.c
Merge branch 'pm-cpufreq'
2019-07-18 09:49:30 +02:00
s3c2440-cpufreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
s5pv210-cpufreq.c
Merge branch 'pm-cpufreq'
2019-07-18 09:49:30 +02:00
sa1100-cpufreq.c
cpufreq: Make cpufreq_generic_init() return void
2019-07-16 10:20:11 +02:00
sa1110-cpufreq.c
Merge branch 'pm-cpufreq'
2019-07-18 09:49:30 +02:00
sc520_freq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
scmi-cpufreq.c
Merge branch 'pm-opp'
2019-03-04 11:19:14 +01:00
scpi-cpufreq.c
cpufreq: scpi: Fix null-ptr-deref in scpi_cpufreq_get_rate()
2025-05-02 07:39:25 +02:00
sfi-cpufreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 235
2019-06-19 17:09:07 +02:00
sh-cpufreq.c
cpufreq: Avoid creating excessively large stack frames
2020-02-11 04:35:25 -08:00
sparc-us2e-cpufreq.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
sparc-us3-cpufreq.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
spear-cpufreq.c
cpufreq: Make cpufreq_generic_init() return void
2019-07-16 10:20:11 +02:00
speedstep-centrino.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
speedstep-ich.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
speedstep-lib.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
speedstep-lib.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
speedstep-smi.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
sti-cpufreq.c
cpufreq: st: Add missing MODULE_DEVICE_TABLE
2020-12-30 11:51:19 +01:00
sun50i-cpufreq-nvmem.c
cpufreq: fix memory leak in sun50i_cpufreq_nvmem_probe
2022-05-09 09:03:25 +02:00
tango-cpufreq.c
…
tegra20-cpufreq.c
cpufreq: Make cpufreq_generic_init() return void
2019-07-16 10:20:11 +02:00
tegra124-cpufreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
2019-06-05 17:36:37 +02:00
tegra186-cpufreq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288
2019-06-05 17:36:37 +02:00
ti-cpufreq.c
cpufreq: ti-cpufreq: Mark expected switch fall-through
2019-07-30 08:10:45 +05:30
unicore2-cpufreq.c
cpufreq: Avoid creating excessively large stack frames
2020-02-11 04:35:25 -08:00
vexpress-spc-cpufreq.c
…