[PATCH 08/31] swim: Don't start motor until medium is present

[Finn Thain <fthain@linux-m68k.org>]

The spindle motor should not be running when a disk is to be inserted.
Don't start the motor while the drive is empty.

Fixes: 8852ecd97488 ("m68k: mac - Add SWIM floppy support")
Signed-off-by: Finn Thain <fthain@linux-m68k.org>
---
 drivers/block/swim.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/block/swim.c b/drivers/block/swim.c
index c49e584cd663..03a89916d4ed 100644
--- a/drivers/block/swim.c
+++ b/drivers/block/swim.c
@@ -630,8 +630,7 @@ static int floppy_open(struct gendisk *disk, blk_mode_t mode)
 		fs->ref_count++;
 
 	swim_drive(base, fs->location);
-	swim_motor(base, ON);
-	swim_action(base, SETMFM);
+
 	if (fs->ejected)
 		setup_medium(fs);
 	if (!fs->disk_in) {
@@ -639,6 +638,9 @@ static int floppy_open(struct gendisk *disk, blk_mode_t mode)
 		goto out;
 	}
 
+	swim_motor(base, ON);
+	swim_action(base, SETMFM);
+
 	set_capacity(fs->disk, fs->total_secs);
 
 	if (mode & BLK_OPEN_NDELAY)
-- 
2.52.0