1 files changed, 6 insertions, 6 deletions

diff --git a/drivers/ide/pci/sc1200.c b/drivers/ide/pci/sc1200.c
index bdc1fed41260..f1a8758e3a99 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);
@@ -216,7 +215,8 @@ static void sc1200_set_pio_mode(ide_drive_t *drive, const u8 pio)
         if (mode != -1) {
                 printk("SC1200: %s: changing (U)DMA mode\n", drive->name);
                 ide_dma_off_quietly(drive);
-                if (ide_set_dma_mode(drive, mode) == 0 && drive->using_dma)
+                if (ide_set_dma_mode(drive, mode) == 0 &&
+                    (drive->dev_flags & IDE_DFLAG_USING_DMA))
                         hwif->dma_ops->dma_host_set(drive, 1);
                 return;
         }
@@ -328,7 +328,7 @@ static const struct pci_device_id sc1200_pci_tbl[] = {
 };
 MODULE_DEVICE_TABLE(pci, sc1200_pci_tbl);
 
-static struct pci_driver driver = {
+static struct pci_driver sc1200_pci_driver = {
         .name           = "SC1200_IDE",
         .id_table       = sc1200_pci_tbl,
         .probe          = sc1200_init_one,
@@ -341,12 +341,12 @@ static struct pci_driver driver = {
 
 static int __init sc1200_ide_init(void)
 {
-        return ide_pci_register_driver(&driver);
+        return ide_pci_register_driver(&sc1200_pci_driver);
 }
 
 static void __exit sc1200_ide_exit(void)
 {
-        pci_unregister_driver(&driver);
+        pci_unregister_driver(&sc1200_pci_driver);
 }
 
 module_init(sc1200_ide_init);