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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2008-10-24 21:50:31 +0200 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-10-25 04:07:14 -0400 |
| commit | f8123381bae8d581d81f24b55719db3d9a6a262c (patch) | |
| tree | 7dd46f965c6b72f4861017ffbbf42fefcdf370ce | |
| parent | 92daa7b53b76984565dfdfda5d9c679884121fb2 (diff) | |
| download | linux-f8123381bae8d581d81f24b55719db3d9a6a262c.tar.bz2 | |
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>
| -rw-r--r-- | drivers/pci/pci-acpi.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index dfe7c8e1b185..b3a63edb6901 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -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"); |