ide: always disable DMA before tuning it

ide_start_power_step() and set_using_dma() were missing ->dma_off_quietly
call (comment in probe_hwif() states that DMA should be always cleared before
tuning is attempted).  Fix it.

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

2 files changed, 2 insertions, 0 deletions

diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 8e568143d90d..bfe8f1b712ba 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -223,6 +223,7 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *
                         break;
                 if (drive->hwif->ide_dma_check == NULL)
                         break;
+                drive->hwif->dma_off_quietly(drive);
                 ide_set_dma(drive);
                 break;
         }
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index f2b547ff7722..6002713a20a1 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -910,6 +910,7 @@ int set_using_dma(ide_drive_t *drive, int arg)
         err = 0;
 
         if (arg) {
+                hwif->dma_off_quietly(drive);
                 if (ide_set_dma(drive) || hwif->ide_dma_on(drive))
                         err = -EIO;
         } else