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usb: dwc3: gadget: always kick if num_pending_sgs > 0

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When we get a half-way processed request, we should
make sure to try to prepare further TRBs for it or
for any possibly queued up request held in our
pending_list. This will make sure our controller is
kept busy for as long as possible.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Felipe Balbi 2016-10-25 13:54:00 +03:00
parent 7282c4ef0b
commit ff377ae47d
1 changed files with 1 additions and 2 deletions
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3
drivers/usb/dwc3/gadget.c
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@ -2123,8 +2123,7 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep,
req->request.actual = length - req->remaining; req->request.actual = length - req->remaining;
if (ret && chain && (req->request.actual < length) if ((req->request.actual < length) && req->num_pending_sgs)
&& req->num_pending_sgs)
return __dwc3_gadget_kick_transfer(dep, 0); return __dwc3_gadget_kick_transfer(dep, 0);
dwc3_gadget_giveback(dep, req, status); dwc3_gadget_giveback(dep, req, status);