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ACPI: processor: idle: Fix memory leak when register cpuidle device failed

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[ 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: 3d339dcbb5 ("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>
This commit is contained in:
Huisong Li
2025-07-28 15:06:11 +08:00
committed by Greg Kroah-Hartman
parent 24a67e7dfd
commit 5b8ac56897
1 changed files with 3 additions and 0 deletions
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3
drivers/acpi/processor_idle.c
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@@ -1410,6 +1410,9 @@ 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++;