Commit f8123381 authored Oct 24, 2008 by Rafael J. Wysocki Committed by Len Brown Oct 25, 2008

ACPI: Oops in ACPI with git latest

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>

parent 92daa7b5

drivers/pci/pci-acpi.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -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");

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