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Commit 9bafa56c authored by Paul Zimmerman's avatar Paul Zimmerman Committed by Felipe Balbi
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usb: dwc3: fix bogus test in dwc3_gadget_start_isoc 



Zero is a valid value for a microframe number. So remove the bogus
test for non-zero in dwc3_gadget_start_isoc().

Cc: stable@vger.kernel.org
Signed-off-by: default avatarPaul Zimmerman <paulz@synopsys.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 27a78d6a

drivers/usb/dwc3/gadget.c

+5 −11
Original line number Diff line number Diff line
@@ -1656,7 +1656,7 @@ static void dwc3_endpoint_transfer_complete(struct dwc3 *dwc, 
static void dwc3_gadget_start_isoc(struct dwc3 *dwc,

		struct dwc3_ep *dep, const struct dwc3_event_depevt *event)

{

	u32 uf;

	u32 uf, mask;



	if (list_empty(&dep->request_list)) {

		dev_vdbg(dwc->dev, "ISOC ep %s run out for requests.\n",
@@ -1664,16 +1664,10 @@ static void dwc3_gadget_start_isoc(struct dwc3 *dwc, 
		return;

	}



	if (event->parameters) {

		u32 mask;



	mask = ~(dep->interval - 1);

	uf = event->parameters & mask;

	/* 4 micro frames in the future */

	uf += dep->interval * 4;

	} else {

		uf = 0;

	}



	__dwc3_gadget_kick_transfer(dep, uf, 1);

}