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Pull 5452 into release branch

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This commit is contained in:
Len Brown 2005-12-01 01:39:55 -05:00
commit 16071a073d
1 changed files with 15 additions and 0 deletions
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15
drivers/acpi/processor_core.c
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@ -543,6 +543,8 @@ static int acpi_processor_get_info(struct acpi_processor *pr)
return_VALUE(0);
}
static void *processor_device_array[NR_CPUS];
static int acpi_processor_start(struct acpi_device *device)
{
int result = 0;
@ -561,6 +563,19 @@ static int acpi_processor_start(struct acpi_device *device)
BUG_ON((pr->id >= NR_CPUS) || (pr->id < 0));
/*
* Buggy BIOS check
* ACPI id of processors can be reported wrongly by the BIOS.
* Don't trust it blindly
*/
if (processor_device_array[pr->id] != NULL &&
processor_device_array[pr->id] != (void *)device) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "BIOS reporting wrong ACPI id"
"for the processor\n"));
return_VALUE(-ENODEV);
}
processor_device_array[pr->id] = (void *)device;
processors[pr->id] = pr;
result = acpi_processor_add_fs(device);