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linux/drivers/cpuidle
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Javier Carrasco bb87b494ae cpuidle: riscv-sbi: fix device node release in early exit of for_each_possible_cpu 
[ Upstream commit 7e25044b80 ]

The 'np' device_node is initialized via of_cpu_device_node_get(), which
requires explicit calls to of_node_put() when it is no longer required
to avoid leaking the resource.

Instead of adding the missing calls to of_node_put() in all execution
paths, use the cleanup attribute for 'np' by means of the __free()
macro, which automatically calls of_node_put() when the variable goes
out of scope. Given that 'np' is only used within the
for_each_possible_cpu(), reduce its scope to release the nood after
every iteration of the loop.

Fixes: 6abf32f1d9 ("cpuidle: Add RISC-V SBI CPU idle driver")
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Link: https://lore.kernel.org/r/20241116-cpuidle-riscv-sbi-cleanup-v3-1-a3a46372ce08@gmail.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-01-17 13:34:41 +01:00
..
governors cpuidle: haltpoll: Add trace points for guest_halt_poll_ns grow/shrink 2022-06-14 16:01:35 +02:00
coupled.c cpuidle: coupled: Drop duplicate word from a comment 2022-08-31 20:54:01 +02:00
cpuidle-arm.c thermal: cpuidle: Register cpuidle cooling device 2020-05-19 12:58:07 +02:00
cpuidle-at91.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2) 2022-06-10 14:51:35 +02:00
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: Call cpuidle_poll_state_init() later 2022-03-09 19:59:45 +01:00
cpuidle-kirkwood.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2) 2022-06-10 14:51:35 +02:00
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 cpuidle: powernv: move from strlcpy() with unused retval to strscpy() 2022-08-31 21:09:54 +02:00
cpuidle-psci-domain.c cpuidle: psci: Move enabling OSI mode after power domains creation 2023-08-23 17:52:17 +02:00
cpuidle-psci.c context_tracking: Take IRQ eqs entrypoints over RCU 2022-07-05 13:32:59 -07:00
cpuidle-psci.h cpuidle: Factor-out power domain related code from PSCI domain driver 2022-03-10 09:29:44 -08:00
cpuidle-pseries.c powerpc/pseries: Rework lppaca_shared_proc() to avoid DEBUG_PREEMPT 2023-09-13 09:42:48 +02:00
cpuidle-qcom-spm.c firmware: qcom: scm: Drop cpumask parameter from set_boot_addr() 2022-02-03 21:54:48 -06:00
cpuidle-riscv-sbi.c cpuidle: riscv-sbi: fix device node release in early exit of for_each_possible_cpu 2025-01-17 13:34:41 +01:00
cpuidle-tegra.c cpuidle: tegra: Check whether PMC is ready 2021-10-05 19:11:40 +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 More power management updates for 5.20-rc1 2022-08-08 14:29:00 -07:00
cpuidle.h cpuidle: allow governor switch on cpuidle_register_driver() 2019-09-11 17:36:30 +02:00
driver.c cpuidle: Avoid potential overflow in integer multiplication 2024-04-13 13:04:54 +02:00
dt_idle_genpd.c cpuidle: dt_idle_genpd: Add helper function to remove genpd topology 2023-08-16 18:27:22 +02:00
dt_idle_genpd.h cpuidle: dt_idle_genpd: Add helper function to remove genpd topology 2023-08-16 18:27:22 +02:00
dt_idle_states.c cpuidle: dt: Return the correct numbers of parsed idle states 2022-12-31 13:31:55 +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: Remove redundant check in cpuidle_switch_governor() 2022-09-03 20:14:51 +02:00
Kconfig cpuidle: Add RISC-V SBI CPU idle driver 2022-03-10 09:29:51 -08:00
Kconfig.arm cpuidle: add ARCH_SUSPEND_POSSIBLE dependencies 2023-03-10 09:34:22 +01:00
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
Kconfig.riscv cpuidle: Add RISC-V SBI CPU idle driver 2022-03-10 09:29:51 -08:00
Makefile cpuidle: Add RISC-V SBI CPU idle driver 2022-03-10 09:29:51 -08:00
poll_state.c cpuidle: Drop disabled field from struct cpuidle_state 2019-11-29 11:48:39 +01:00
sysfs.c cpuidle: use default_groups in kobj_type 2022-01-05 18:31:17 +01:00