From 2dfcacafb11b0f91fb016cd3c992dffc54c8dd3b Mon Sep 17 00:00:00 2001 From: Anna Perel Date: Wed, 18 Apr 2012 17:25:59 +0300 Subject: [PATCH] usb: gadget: mbim: Send zero-length packets If control packet size is a multiple of 64b and is smaller than 4kb, send after it a zero-length packet to the host. CRs-Fixed: 352523 Change-Id: I44a97cacf7d92d66c91f81405802f7d1cf5f5285 Signed-off-by: Anna Perel --- drivers/usb/gadget/f_mbim.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/gadget/f_mbim.c b/drivers/usb/gadget/f_mbim.c index 21b393ed201..0598c7ba045 100644 --- a/drivers/usb/gadget/f_mbim.c +++ b/drivers/usb/gadget/f_mbim.c @@ -1048,7 +1048,7 @@ mbim_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl) pr_info("control request: %02x.%02x v%04x i%04x l%d\n", ctrl->bRequestType, ctrl->bRequest, w_value, w_index, w_length); - req->zero = 0; + req->zero = (value < w_length); req->length = value; value = usb_ep_queue(cdev->gadget->ep0, req, GFP_ATOMIC); if (value < 0) {