ACPI: processor: fix acpi_object initialization

[ Upstream commit 13edf7539211d8f7d0068ce3ed143005f1da3547 ]

Initialization of the local acpi_object in acpi_processor_get_info()
only sets the first 4 bytes to zero and is thus incomplete. This is
indicated by messages like:
	acpi ACPI0007:be: Invalid PBLK length [166288104]

Fix this by initializing all 16 bytes of the processor member of that
union.

Signed-off-by: Sebastian Ott <sebott@redhat.com>
Link: https://patch.msgid.link/20250703124215.12522-1-sebott@redhat.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index 707b2c37e5ee6e286794a133371e0895f75cfee9..74e949d340a19bf64fc64cc4cb1cdc2b7903d33b 100644 (file)
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -228,7 +228,7 @@ static inline int acpi_processor_hotadd_init(struct acpi_processor *pr)
 
 static int acpi_processor_get_info(struct acpi_device *device)
 {
-       union acpi_object object = { 0 };
+       union acpi_object object = { .processor = { 0 } };
        struct acpi_buffer buffer = { sizeof(union acpi_object), &object };
        struct acpi_processor *pr = acpi_driver_data(device);
        int device_declaration = 0;