usb: storage: shuttle_usbat: fix discs being detected twice

commit df602c2d2358f02c6e49cffc5b49b9daa16db033 upstream.

Even if the USB-to-ATAPI converter supported multiple LUNs, this
driver would always detect the same physical device or media because
it doesn't use srb->device->lun in any way.
Tested with an Hewlett-Packard CD-Writer Plus 8200e.

Signed-off-by: Daniele Forsi <dforsi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/drivers/usb/storage/shuttle_usbat.c b/drivers/usb/storage/shuttle_usbat.c
index 0b00091..ff8aeee 100644 (file)
--- a/drivers/usb/storage/shuttle_usbat.c
+++ b/drivers/usb/storage/shuttle_usbat.c
@@ -1846,7 +1846,7 @@ static int usbat_probe(struct usb_interface *intf,
        us->transport_name = "Shuttle USBAT";
        us->transport = usbat_flash_transport;
        us->transport_reset = usb_stor_CB_reset;
-       us->max_lun = 1;
+       us->max_lun = 0;
 
        result = usb_stor_probe2(us);
        return result;