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usb: dwc3: ep0: split the special cases on ep0_queue

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We can return early from each if () branch
and split the special cases for clarity. While
at that also add a comment to the delayed_status
case.

Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Felipe Balbi 2012-07-19 08:51:13 +03:00
parent 35f7569664
commit d9b33c605c
1 changed files with 11 additions and 1 deletions
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12
drivers/usb/dwc3/ep0.c
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@ -155,13 +155,23 @@ static int __dwc3_gadget_ep0_queue(struct dwc3_ep *dep,
dep->flags &= ~(DWC3_EP_PENDING_REQUEST |
DWC3_EP0_DIR_IN);
} else if (dwc->delayed_status) {
return 0;
}
/*
* In case gadget driver asked us to delay the STATUS phase,
* handle it here.
*/
if (dwc->delayed_status) {
dwc->delayed_status = false;
if (dwc->ep0state == EP0_STATUS_PHASE)
__dwc3_ep0_do_control_status(dwc, dwc->eps[1]);
else
dev_dbg(dwc->dev, "too early for delayed status\n");
return 0;
}
return 0;