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ACPI: Oops in ACPI with git latest

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ACPI Warning (nseval-0168): Insufficient arguments - method [_OSC] needs 5, found 4 [20080926]
ACPI Warning (nspredef-0252): \_SB_.PCI0._OSC: Parameter count mismatch - ASL declared 5, expected 4 [20080926]
ACPI Error (nspredef-0163): \_SB_.PCI0._OSC: Missing expected return value [20080926]
BUG: unable to handle kernel NULL pointer dereference at 00000000
IP: [<c0237671>] acpi_run_osc+0xa1/0x170

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Tested-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Rafael J. Wysocki 2008-10-24 21:50:31 +02:00 committed by Len Brown
parent 92daa7b53b
commit f8123381ba
1 changed files with 3 additions and 0 deletions
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3
drivers/pci/pci-acpi.c
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@ -83,6 +83,9 @@ static acpi_status acpi_run_osc(acpi_handle handle,
if (ACPI_FAILURE(status))
return status;
if (!output.length)
return AE_NULL_OBJECT;
out_obj = output.pointer;
if (out_obj->type != ACPI_TYPE_BUFFER) {
printk(KERN_DEBUG "Evaluate _OSC returns wrong type\n");