X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fpci%2Fpci-acpi.c;h=b3a63edb69012bd443f4caebffdaddf12103b86a;hb=f8123381bae8d581d81f24b55719db3d9a6a262c;hp=dfe7c8e1b18586fa9da406cd365bbfb14188ec97;hpb=92daa7b53b76984565dfdfda5d9c679884121fb2;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index dfe7c8e1b18..b3a63edb690 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");