The code assumes that the pci bus address and the virtual address used to access a region are the same, but they might not be. Fix this assumption.
Signed-off-by: Becky Bruce beckyb@kernel.crashing.org --- drivers/block/ahci.c | 7 ++----- 1 files changed, 2 insertions(+), 5 deletions(-)
diff --git a/drivers/block/ahci.c b/drivers/block/ahci.c index 2445e8c..e1b66fd 100644 --- a/drivers/block/ahci.c +++ b/drivers/block/ahci.c @@ -251,7 +251,6 @@ static void ahci_print_info(struct ahci_probe_ent *probe_ent)
static int ahci_init_one(pci_dev_t pdev) { - u32 iobase; u16 vendor; int rc;
@@ -261,9 +260,6 @@ static int ahci_init_one(pci_dev_t pdev) memset(probe_ent, 0, sizeof(struct ahci_probe_ent)); probe_ent->dev = pdev;
- pci_read_config_dword(pdev, AHCI_PCI_BAR, &iobase); - iobase &= ~0xf; - probe_ent->host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO @@ -272,7 +268,8 @@ static int ahci_init_one(pci_dev_t pdev) probe_ent->pio_mask = 0x1f; probe_ent->udma_mask = 0x7f; /*Fixme,assume to support UDMA6 */
- probe_ent->mmio_base = iobase; + probe_ent->mmio_base = (u32)pci_map_bar(pdev, AHCI_PCI_BAR, + PCI_REGION_MEM);
/* Take from kernel: * JMicron-specific fixup: