diff options
| -rw-r--r-- | drivers/ide/pci/cs5530.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/ide/pci/cs5530.c b/drivers/ide/pci/cs5530.c index acaf71f..e5949b1 100644 --- a/drivers/ide/pci/cs5530.c +++ b/drivers/ide/pci/cs5530.c @@ -1,5 +1,5 @@ /* - * linux/drivers/ide/pci/cs5530.c Version 0.73 Mar 10 2007 + * linux/drivers/ide/pci/cs5530.c Version 0.74 Jul 28 2007 * * Copyright (C) 2000 Andre Hedrick <andre@linux-ide.org> * Copyright (C) 2000 Mark Lord <mlord@pobox.com> @@ -207,6 +207,9 @@ static unsigned int __devinit init_chipset_cs5530 (struct pci_dev *dev, const ch struct pci_dev *master_0 = NULL, *cs5530_0 = NULL; unsigned long flags; + if (pci_resource_start(dev, 4) == 0) + return -EFAULT; + dev = NULL; while ((dev = pci_get_device(PCI_VENDOR_ID_CYRIX, PCI_ANY_ID, dev)) != NULL) { switch (dev->device) { @@ -325,6 +328,9 @@ static void __devinit init_hwif_cs5530 (ide_hwif_t *hwif) /* needs autotuning later */ } + if (hwif->dma_base == 0) + return; + hwif->atapi_dma = 1; hwif->ultra_mask = 0x07; hwif->mwdma_mask = 0x07; |