[PATCH 4/9] ide: use ide_destroy_dmatable() instead of pci_unmap_sg()

[Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>]

Use ide_destroy_dmatable() in:
* ide-dma.c::ide_build_dmatable()
* sgiioc4.c::sgiioc4_build_dma_table()
* pmac.c::pmac_ide_{build,destroy}_dmatable()

There should be no functionality changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-dma.c     |    8 ++++----
 drivers/ide/pci/sgiioc4.c |    3 +--
 drivers/ide/ppc/pmac.c    |   14 +++++---------
 3 files changed, 10 insertions(+), 15 deletions(-)

Index: b/drivers/ide/ide-dma.c
===================================================================
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -282,12 +282,12 @@ int ide_build_dmatable (ide_drive_t *dri
 			*--table |= cpu_to_le32(0x80000000);
 		return count;
 	}
+
 	printk(KERN_ERR "%s: empty DMA table?\n", drive->name);
+
 use_pio_instead:
-	pci_unmap_sg(hwif->pci_dev,
-		     hwif->sg_table,
-		     hwif->sg_nents,
-		     hwif->sg_dma_direction);
+	ide_destroy_dmatable(drive);
+
 	return 0; /* revert to PIO for this request */
 }
 
Index: b/drivers/ide/pci/sgiioc4.c
===================================================================
--- a/drivers/ide/pci/sgiioc4.c
+++ b/drivers/ide/pci/sgiioc4.c
@@ -517,8 +517,7 @@ sgiioc4_build_dma_table(ide_drive_t * dr
 	}
 
 use_pio_instead:
-	pci_unmap_sg(hwif->pci_dev, hwif->sg_table, hwif->sg_nents,
-		     hwif->sg_dma_direction);
+	ide_destroy_dmatable(drive);
 
 	return 0;		/* revert to PIO for this request */
 }
Index: b/drivers/ide/ppc/pmac.c
===================================================================
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -1535,11 +1535,10 @@ pmac_ide_build_dmatable(ide_drive_t *dri
 	}
 
 	printk(KERN_DEBUG "%s: empty DMA table?\n", drive->name);
- use_pio_instead:
-	pci_unmap_sg(hwif->pci_dev,
-		     hwif->sg_table,
-		     hwif->sg_nents,
-		     hwif->sg_dma_direction);
+
+use_pio_instead:
+	ide_destroy_dmatable(drive);
+
 	return 0; /* revert to PIO for this request */
 }
 
@@ -1548,12 +1547,9 @@ static void
 pmac_ide_destroy_dmatable (ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	struct pci_dev *dev = HWIF(drive)->pci_dev;
-	struct scatterlist *sg = hwif->sg_table;
-	int nents = hwif->sg_nents;
 
 	if (nents) {
-		pci_unmap_sg(dev, sg, nents, hwif->sg_dma_direction);
+		ide_destroy_dmatable(drive);
 		hwif->sg_nents = 0;
 	}
 }