In case of Promise TX4 the first PCI device is located at slot 1 and the second one is at slot 2 so the offset used by pci_get_slot() should be "+1" and not "+2". Thanks goes out to Markus Dietz for bugreport and testing this patch. Cc: Sergei Shtylyov <sshtylyov@xxxxxxxxxxxxx> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx> --- drivers/ide/pci/pdc202xx_new.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) Index: b/drivers/ide/pci/pdc202xx_new.c =================================================================== --- a/drivers/ide/pci/pdc202xx_new.c +++ b/drivers/ide/pci/pdc202xx_new.c @@ -482,8 +482,9 @@ static struct pci_dev * __devinit pdc202 { struct pci_dev *dev2; - dev2 = pci_get_slot(dev->bus, PCI_DEVFN(PCI_SLOT(dev->devfn) + 2, + dev2 = pci_get_slot(dev->bus, PCI_DEVFN(PCI_SLOT(dev->devfn) + 1, PCI_FUNC(dev->devfn))); + if (dev2 && dev2->vendor == dev->vendor && dev2->device == dev->device) { - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html