diff options
| author | Steve French <sfrench@us.ibm.com> | 2005-12-05 11:15:30 -0800 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2005-12-05 11:15:30 -0800 |
| commit | c89a86bb96307019867d11874ef0b86adaa0598e (patch) | |
| tree | c44c1a825e8a143a4c52bcb8692292aeb77fa64e /drivers/acpi/processor_core.c | |
| parent | 07475ffba5800c53573180dd521273642adcd0e9 (diff) | |
| parent | e4f5c82a92c2a546a16af1614114eec19120e40a (diff) | |
Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'drivers/acpi/processor_core.c')
| -rw-r--r-- | drivers/acpi/processor_core.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 42179256264..0c561c571f2 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -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); |