ide: check drive->present in ide_get_paired_drive()

[linux-2.6-block.git] / drivers / ide / pci / sc1200.c

diff --git a/drivers/ide/pci/sc1200.c b/drivers/ide/pci/sc1200.c
index 695cc9742048b256d90cd50909066348e4209006..37326d2205b868348b86584097918c10d84e0a97 100644 (file)
--- a/drivers/ide/pci/sc1200.c
+++ b/drivers/ide/pci/sc1200.c
@@ -104,11 +104,11 @@ static void sc1200_tunepio(ide_drive_t *drive, u8 pio)
 static u8 sc1200_udma_filter(ide_drive_t *drive)
 {
        ide_hwif_t *hwif = drive->hwif;
-       ide_drive_t *mate = &hwif->drives[(drive->dn & 1) ^ 1];
+       ide_drive_t *mate = ide_get_pair_dev(drive);
        u16 *mateid = mate->id;
        u8 mask = hwif->ultra_mask;
 
-       if (mate->present == 0)
+       if (mate == NULL)
                goto out;
 
        if (ata_id_has_dma(mateid) && __ide_dma_bad_drive(mate) == 0) {