status = pci_osc_control_set(handle, OSC_PCI_EXPRESS_NATIVE_HP_CONTROL);  /* Fixme: fail native hotplug if _OSC does not exist for root ports */ if (status == AE_NOT_FOUND) { 
while (!handle) { 
int get_hp_hw_control_from_firmware(struct pci_dev *dev){	acpi_status status;	acpi_handle handle = DEVICE_ACPI_HANDLE(&(dev->dev));	/*	 * Per PCI firmware specification, we should run the ACPI _OSC	 * method to get control of hotplug hardware before using it	 */	status = pci_osc_control_set(handle,			OSC_PCI_EXPRESS_NATIVE_HP_CONTROL);	/* Fixme: fail native hotplug if _OSC does not exist for root ports */	if (status == AE_NOT_FOUND) {		/*		 * Some older BIOS's don't support _OSC but support		 * OSHP to do the same thing		 */		status = acpi_run_oshp(handle);	}	if (ACPI_FAILURE(status)) {		err("Cannot get control of hotplug hardware\n");		return -1;	}	dbg("Sucess getting control of hotplug hardware\n");	return 0;}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/a3a45ec8f8edaf088449e37fe81c99cbf580b9bd/pciehprm_acpi.c/buggy/drivers/pci/hotplug/pciehprm_acpi.c