summaryrefslogtreecommitdiffstats
path: root/drivers/ide/ide-io.c
diff options
context:
space:
mode:
authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-10-20 00:32:36 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-10-20 00:32:36 +0200
commitd393aa0326436efd3cb800916b08cdac4dd1091a (patch)
tree2fae9665c336a40d9a20a77612cac61daf107dce /drivers/ide/ide-io.c
parent69e88d2a754fcaf7ef8ca465586b811cf40dc479 (diff)
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>
Diffstat (limited to 'drivers/ide/ide-io.c')
-rw-r--r--drivers/ide/ide-io.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 32eaa3f8051..e2eb408a8a1 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -800,7 +800,20 @@ static ide_startstop_t do_special (ide_drive_t *drive)
s->b.set_tune = 0;
if (set_pio_mode_abuse(drive->hwif, req_pio)) {
- if (hwif->set_pio_mode)
+
+ if (hwif->set_pio_mode == NULL)
+ return ide_stopped;
+
+ /*
+ * take ide_lock for drive->[no_]unmask/[no_]io_32bit
+ */
+ if (req_pio == 8 || req_pio == 9) {
+ unsigned long flags;
+
+ spin_lock_irqsave(&ide_lock, flags);
+ hwif->set_pio_mode(drive, req_pio);
+ spin_unlock_irqrestore(&ide_lock, flags);
+ } else
hwif->set_pio_mode(drive, req_pio);
} else {
int keep_dma = drive->using_dma;