ide-{floppy,tape,scsi}: fix register loading order when issuing packet command

Load IDE_BCOUNTL_REG before IDE_BCOUNTH_REG when issuing packet command.

It shouldn't affect anything (just a usual paranoia to separate changes
which change the way in which hardware is accessed from code cleanups).

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

3 files changed, 3 insertions, 3 deletions

diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 830186fdcc74..d4fd064cc76c 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -1071,8 +1071,8 @@ static ide_startstop_t idefloppy_issue_pc (ide_drive_t *drive, idefloppy_pc_t *p
                 HWIF(drive)->OUTB(drive->ctl, IDE_CONTROL_REG);
         /* Use PIO/DMA */
         hwif->OUTB(dma, IDE_FEATURE_REG);
-        hwif->OUTB((bcount >> 8) & 0xff, IDE_BCOUNTH_REG);
         hwif->OUTB(bcount & 0xff, IDE_BCOUNTL_REG);
+        hwif->OUTB((bcount >> 8) & 0xff, IDE_BCOUNTH_REG);
         HWIF(drive)->OUTB(drive->select.all, IDE_SELECT_REG);
 
         if (dma) {      /* Begin DMA, if necessary */
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 3539131f23f4..d1f2446739a4 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -2174,8 +2174,8 @@ static ide_startstop_t idetape_issue_packet_command (ide_drive_t *drive, idetape
         if (IDE_CONTROL_REG)
                 hwif->OUTB(drive->ctl, IDE_CONTROL_REG);
         hwif->OUTB(dma_ok ? 1 : 0, IDE_FEATURE_REG);    /* Use PIO/DMA */
-        hwif->OUTB((bcount >> 8) & 0xff, IDE_BCOUNTH_REG);
         hwif->OUTB(bcount & 0xff, IDE_BCOUNTL_REG);
+        hwif->OUTB((bcount >> 8) & 0xff, IDE_BCOUNTH_REG);
         hwif->OUTB(drive->select.all, IDE_SELECT_REG);
         if (dma_ok)                     /* Will begin DMA later */
                 set_bit(PC_DMA_IN_PROGRESS, &pc->flags);
diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c
index ab7e8642cb88..76f0ccd2968b 100644
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -594,8 +594,8 @@ static ide_startstop_t idescsi_issue_pc (ide_drive_t *drive, idescsi_pc_t *pc)
                 HWIF(drive)->OUTB(drive->ctl, IDE_CONTROL_REG);
 
         hwif->OUTB(dma, IDE_FEATURE_REG);
-        hwif->OUTB((bcount >> 8) & 0xff, IDE_BCOUNTH_REG);
         hwif->OUTB(bcount & 0xff, IDE_BCOUNTL_REG);
+        hwif->OUTB((bcount >> 8) & 0xff, IDE_BCOUNTH_REG);
 
         if (dma)
                 set_bit(PC_DMA_OK, &pc->flags);