ide: add missing checks for control register existence

Add missing checks for control register existence (some legacy m68k specific
IDE controllers don't have it).  Also use drive->ctl while at it.

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

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index ee848c705995..bd0a6004a13b 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -667,7 +667,8 @@ static int wait_hwif_ready(ide_hwif_t *hwif)
                 /* Ignore disks that we will not probe for later. */
                 if (!drive->noprobe || drive->present) {
                         SELECT_DRIVE(drive);
-                        hwif->OUTB(8, hwif->io_ports[IDE_CONTROL_OFFSET]);
+                        if (IDE_CONTROL_REG)
+                                hwif->OUTB(drive->ctl, IDE_CONTROL_REG);
                         mdelay(2);
                         rc = ide_wait_not_busy(hwif, 35000);
                         if (rc)