block/swim: Select appropriate drive on device open

commit b3906535ccc6cd04c42f9b1c7e31d1947b3ebc74 upstream.

The driver supports internal and external FDD units so the floppy_open
function must not hard-code the drive location.

Cc: Laurent Vivier <lvivier@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: stable@vger.kernel.org # v4.14+
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/block/swim.c b/drivers/block/swim.c
index 2ab7049..b82aaa4 100644 (file)
--- a/drivers/block/swim.c
+++ b/drivers/block/swim.c
@@ -646,7 +646,7 @@ static int floppy_open(struct block_device *bdev, fmode_t mode)
 
        swim_write(base, setup, S_IBM_DRIVE  | S_FCLK_DIV2);
        udelay(10);
-       swim_drive(base, INTERNAL_DRIVE);
+       swim_drive(base, fs->location);
        swim_motor(base, ON);
        swim_action(base, SETMFM);
        if (fs->ejected)