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usb: dwc3: gadget: return early in dwc3_cleanup_done_reqs()

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This patch avoids the compiler spitting out the following warning:
|drivers/usb/dwc3/gadget.c:1304: warning: 'trb' is used uninitialized \
	in this function

This is only uninitialized if the list of to-cleanup TRBs is empty which
should not be the case because we call this functions once a transfer
completed so it should be on list.

In order to make the warning disappear we return early. This should
never happen and the WARN_ON_ONCE(1) is there in case it happens
so we can investigate what went wrong.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Sebastian Andrzej Siewior 2011-11-03 10:32:20 +01:00 committed by Felipe Balbi
parent 5bdb1dcc63
commit d39ee7be2a
1 changed files with 4 additions and 2 deletions
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6
drivers/usb/dwc3/gadget.c
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@ -1308,8 +1308,10 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep,
do {
req = next_request(&dep->req_queued);
if (!req)
break;
if (!req) {
WARN_ON_ONCE(1);
return 1;
}
dwc3_trb_to_nat(req->trb, &trb);