From: Huisong Li Date: Mon, 28 Jul 2025 07:06:11 +0000 (+0800) Subject: ACPI: processor: idle: Fix memory leak when register cpuidle device failed X-Git-Tag: v6.18-rc1~151^2~3^3~10 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=11b3de1c03fa9f3b5d17e6d48050bc98b3704420;p=thirdparty%2Flinux.git ACPI: processor: idle: Fix memory leak when register cpuidle device failed 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 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 --- diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 2c2dc559e0f8d..d0fc045a8d310 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -1405,6 +1405,9 @@ 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++;