diff options
| -rw-r--r-- | drivers/ide/pci/via82cxxx.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c index eb7ab112c05..61f1a9665a7 100644 --- a/drivers/ide/pci/via82cxxx.c +++ b/drivers/ide/pci/via82cxxx.c @@ -282,11 +282,11 @@ static unsigned int __devinit init_chipset_via82cxxx(struct pci_dev *dev, const * Find the ISA bridge to see how good the IDE is. */ via_config = via_config_find(&isa); - if (!via_config->id) { - printk(KERN_WARNING "VP_IDE: Unknown VIA SouthBridge, disabling DMA.\n"); - pci_dev_put(isa); - return -ENODEV; - } + + /* We checked this earlier so if it fails here deeep badness + is involved */ + + BUG_ON(!via_config->id); /* * Setup or disable Clk66 if appropriate @@ -494,6 +494,17 @@ static ide_pci_device_t via82cxxx_chipsets[] __devinitdata = { static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_id *id) { + struct pci_dev *isa = NULL; + struct via_isa_bridge *via_config; + /* + * Find the ISA bridge and check we know what it is. + */ + via_config = via_config_find(&isa); + pci_dev_put(isa); + if (!via_config->id) { + printk(KERN_WARNING "VP_IDE: Unknown VIA SouthBridge, disabling DMA.\n"); + return -ENODEV; + } return ide_setup_pci_device(dev, &via82cxxx_chipsets[id->driver_data]); } |