ide: take ide_lock for prefetch disable/enable in do_special()

Take ide_lock for prefetch disable/enable in do_special(),
then cleanup cmd640 and ht6560b host drivers.

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

1 files changed, 0 insertions, 5 deletions

diff --git a/drivers/ide/legacy/ht6560b.c b/drivers/ide/legacy/ht6560b.c
index 4a93adbab1de..a4245d13f11b 100644
--- a/drivers/ide/legacy/ht6560b.c
+++ b/drivers/ide/legacy/ht6560b.c
@@ -286,12 +286,7 @@ static void ht6560b_set_pio_mode(ide_drive_t *drive, const u8 pio)
         switch (pio) {
         case 8:         /* set prefetch off */
         case 9:         /* set prefetch on */
-                /*
-                 * take ide_lock for drive->[no_]unmask
-                 */
-                spin_lock_irqsave(&ide_lock, flags);
                 ht_set_prefetch(drive, pio & 1);
-                spin_unlock_irqrestore(&ide_lock, flags);
                 return;
         }