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ACPI: processor: Return an error if acpi_processor_get_info() fails in processor_add()

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[ Upstream commit fadf231f0a ]

Rafael observed [1] that returning 0 from processor_add() will result in
acpi_default_enumeration() being called which will attempt to create a
platform device, but that makes little sense when the processor is known
to be not available.  So just return the error code from acpi_processor_get_info()
instead.

Link: https://lore.kernel.org/all/CAJZ5v0iKU8ra9jR+EmgxbuNm=Uwx2m1-8vn_RAZ+aCiUVLe3Pw@mail.gmail.com/ [1]
Suggested-by: Rafael J. Wysocki <rafael@kernel.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240529133446.28446-5-Jonathan.Cameron@huawei.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jonathan Cameron 2024-05-29 14:34:31 +01:00 committed by Greg Kroah-Hartman
parent 241bce1c75
commit 6bf77014db
1 changed files with 1 additions and 1 deletions
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2
drivers/acpi/acpi_processor.c
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@ -415,7 +415,7 @@ static int acpi_processor_add(struct acpi_device *device,
result = acpi_processor_get_info(device);
if (result) /* Processor is not physically present or unavailable */
return 0;
return result;
BUG_ON(pr->id >= nr_cpu_ids);