diff options
| -rw-r--r-- | drivers/usb/gadget/udc/dummy_hcd.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c index 69a0b3fa4737..ab7e015e2f55 100644 --- a/drivers/usb/gadget/udc/dummy_hcd.c +++ b/drivers/usb/gadget/udc/dummy_hcd.c @@ -1385,12 +1385,15 @@ top: if (len == 0) break; - /* use an extra pass for the final short packet */ - if (len > ep->ep.maxpacket) { - rescan = 1; - len -= (len % ep->ep.maxpacket); + /* send multiple of maxpacket first, then remainder */ + if (len >= ep->ep.maxpacket) { + is_short = 0; + if (len % ep->ep.maxpacket) + rescan = 1; + len -= len % ep->ep.maxpacket; + } else { + is_short = 1; } - is_short = (len % ep->ep.maxpacket) != 0; len = dummy_perform_transfer(urb, req, len); |