5.4-stable review patch. If anyone has any objections, please let me know.
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From: Huisong Li lihuisong@huawei.com
[ Upstream commit 11b3de1c03fa9f3b5d17e6d48050bc98b3704420 ]
The cpuidle device's memory is leaked when cpuidle device registration fails in acpi_processor_power_init(). Free it as appropriate.
Fixes: 3d339dcbb56d ("cpuidle / ACPI : move cpuidle_device field out of the acpi_processor_power structure") Signed-off-by: Huisong Li lihuisong@huawei.com Link: https://patch.msgid.link/20250728070612.1260859-2-lihuisong@huawei.com [ rjw: Changed the order of the new statements, added empty line after if () ] [ rjw: Changelog edits ] Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/acpi/processor_idle.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index e6bba26caf3c8..86655d65f3215 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -1506,6 +1506,9 @@ int acpi_processor_power_init(struct acpi_processor *pr) if (retval) { if (acpi_processor_registered == 0) cpuidle_unregister_driver(&acpi_idle_driver); + + per_cpu(acpi_cpuidle_device, pr->id) = NULL; + kfree(dev); return retval; } acpi_processor_registered++;