ide: cleanup ide_set_dma()

* ->dma_off_quietly is always called before ide_set_dma()
  so the call can be moved inside ide_set_dma().

* ide_dma_check() doesn't touch hardware so ->dma_off_quietly
  call for 'rc == -1' case is redundant, remove it.

* '0' and '-1' are the only values returned by ide_dma_check()
  so remove dead code for other cases.

There should be no functionality changes caused by this patch.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 0 insertions, 1 deletions

diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index e053e00a705..2711b5a6962 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -221,7 +221,6 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *
                  */
                 if (drive->hwif->ide_dma_on == NULL)
                         break;
-                drive->hwif->dma_off_quietly(drive);
                 /*
                  * TODO: respect ->using_dma setting
                  */