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path: root/drivers/ide/pci/sc1200.c
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Diffstat (limited to 'drivers/ide/pci/sc1200.c')
-rw-r--r--drivers/ide/pci/sc1200.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/ide/pci/sc1200.c b/drivers/ide/pci/sc1200.c
index 50405ed6f0c..79eeeadad65 100644
--- a/drivers/ide/pci/sc1200.c
+++ b/drivers/ide/pci/sc1200.c
@@ -126,7 +126,6 @@ static void sc1200_set_dma_mode(ide_drive_t *drive, const u8 mode)
{
ide_hwif_t *hwif = HWIF(drive);
struct pci_dev *dev = to_pci_dev(hwif->dev);
- int unit = drive->select.b.unit;
unsigned int reg, timings;
unsigned short pci_clock;
unsigned int basereg = hwif->channel ? 0x50 : 0x40;
@@ -155,7 +154,7 @@ static void sc1200_set_dma_mode(ide_drive_t *drive, const u8 mode)
else
timings = mwdma_timing[pci_clock][mode - XFER_MW_DMA_0];
- if (unit == 0) { /* are we configuring drive0? */
+ if ((drive->dn & 1) == 0) {
pci_read_config_dword(dev, basereg + 4, &reg);
timings |= reg & 0x80000000; /* preserve PIO format bit */
pci_write_config_dword(dev, basereg + 4, timings);