ide: make ide_hwif_t.ide_dma_{host_off,off_quietly} void (v2)

* since ide_hwif_t.ide_dma_{host_off,off_quietly} always return '0'
  make these functions void and while at it drop "ide_" prefix
* fix comment for __ide_dma_off_quietly()
* make __ide_dma_{host_off,off_quietly,off}() void and drop "__" prefix

v2:
* while at it rename atiixp_ide_dma_host_off() to atiixp_dma_host_off(),
  sgiioc4_ide_dma_{host_off,off_quietly}() to sgiioc4_dma_{host_off,off_quietly}()
  and sl82c105_ide_dma_off_quietly() to sl82c105_dma_off_quietly()
  [ Noticed by Sergei Shtylyov <sshtylyov@ru.mvista.com>. ]

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c
index 8a723c8..266ef37 100644
--- a/drivers/ide/mips/au1xxx-ide.c
+++ b/drivers/ide/mips/au1xxx-ide.c
@@ -449,16 +449,13 @@
 	return auide_dma_host_on(drive);
 }
 
-
-static int auide_dma_host_off(ide_drive_t *drive)
+static void auide_dma_host_off(ide_drive_t *drive)
 {
-	return 0;
 }
 
-static int auide_dma_off_quietly(ide_drive_t *drive)
+static void auide_dma_off_quietly(ide_drive_t *drive)
 {
 	drive->using_dma = 0;
-	return auide_dma_host_off(drive);
 }
 
 static int auide_dma_lostirq(ide_drive_t *drive)
@@ -724,7 +721,7 @@
 	hwif->speedproc                 = &auide_tune_chipset;
 
 #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
-	hwif->ide_dma_off_quietly       = &auide_dma_off_quietly;
+	hwif->dma_off_quietly		= &auide_dma_off_quietly;
 	hwif->ide_dma_timeout           = &auide_dma_timeout;
 
 	hwif->ide_dma_check             = &auide_dma_check;
@@ -733,7 +730,7 @@
 	hwif->ide_dma_end               = &auide_dma_end;
 	hwif->dma_setup                 = &auide_dma_setup;
 	hwif->ide_dma_test_irq          = &auide_dma_test_irq;
-	hwif->ide_dma_host_off          = &auide_dma_host_off;
+	hwif->dma_host_off		= &auide_dma_host_off;
 	hwif->ide_dma_host_on           = &auide_dma_host_on;
 	hwif->ide_dma_lostirq           = &auide_dma_lostirq;
 	hwif->ide_dma_on                = &auide_dma_on;