diff options
Diffstat (limited to 'drivers/usb/gadget/arcotg_udc.c')
| -rwxr-xr-x | drivers/usb/gadget/arcotg_udc.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/usb/gadget/arcotg_udc.c b/drivers/usb/gadget/arcotg_udc.c index 91f99391fb58..391ba5820527 100755 --- a/drivers/usb/gadget/arcotg_udc.c +++ b/drivers/usb/gadget/arcotg_udc.c @@ -865,8 +865,13 @@ static int fsl_queue_td(struct fsl_ep *ep, struct fsl_req *req) ? (1 << (ep_index(ep) + 16)) : (1 << (ep_index(ep))); - /* check if the pipe is empty */ - if (!(list_empty(&ep->queue))) { + /* + * check if + * - the request is empty, and + * - the request is not the status request for ep0 + */ + if (!(list_empty(&ep->queue)) && + !((ep_index(ep) == 0) && (req->req.length == 0))) { /* Add td to the end */ struct fsl_req *lastreq; lastreq = list_entry(ep->queue.prev, struct fsl_req, queue); |