usb: dwc3: gadget: simplify __dwc3_gadget_ep_queue()
There is more possibility for sharing code if we just realise that now __dwc3_gadget_kic_transfer() knows to break out early if there are no TRBs left. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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@ -1290,7 +1290,6 @@ static void dwc3_gadget_start_isoc(struct dwc3 *dwc,
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static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
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{
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struct dwc3 *dwc = dep->dwc;
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int ret = 0;
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if (!dep->endpoint.desc) {
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dev_err(dwc->dev, "%s: can't queue to disabled endpoint\n",
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@ -1337,24 +1336,14 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
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}
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if ((dep->flags & DWC3_EP_BUSY) &&
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!(dep->flags & DWC3_EP_MISSED_ISOC)) {
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WARN_ON_ONCE(!dep->resource_index);
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ret = __dwc3_gadget_kick_transfer(dep,
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dep->resource_index);
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}
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!(dep->flags & DWC3_EP_MISSED_ISOC))
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goto out;
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goto out;
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return 0;
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}
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if (!dwc3_calc_trbs_left(dep))
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return 0;
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ret = __dwc3_gadget_kick_transfer(dep, 0);
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out:
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if (ret == -EBUSY)
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ret = 0;
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return ret;
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return __dwc3_gadget_kick_transfer(dep, 0);
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}
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static int dwc3_gadget_ep_queue(struct usb_ep *ep, struct usb_request *request,
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