[PATCH] 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@xxxxxxxxx>
---
drivers/ide/ide-io.c | 1 +
drivers/ide/ide.c | 1 +
2 files changed, 2 insertions(+)
Index: b/drivers/ide/ide-io.c
===================================================================
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -223,6 +223,7 @@ static ide_startstop_t ide_start_power_s
break;
if (drive->hwif->ide_dma_check == NULL)
break;
+ drive->hwif->dma_off_quietly(drive);
ide_set_dma(drive);
break;
}
Index: b/drivers/ide/ide.c
===================================================================
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -898,6 +898,7 @@ int set_using_dma(ide_drive_t *drive, in
if (HWIF(drive)->ide_dma_check == NULL)
return -EPERM;
if (arg) {
+ HWIF(drive)->dma_off_quietly(drive);
if (ide_set_dma(drive))
return -EIO;
if (HWIF(drive)->ide_dma_on(drive)) return -EIO;
-
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