AcoSail/kernel_optimize_test
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ide: always disable DMA before tuning it

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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>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2007-05-16 00:51:43 +02:00
parent 7f86723a60
commit 793a97228d
2 changed files with 2 additions and 0 deletions
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1
drivers/ide/ide-io.c
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@ -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;
}

1
drivers/ide/ide.c
View File

@ -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