usb: dwc3: gadget: decrement trbs_left for each sg entry

If we don't, we will overwrite valid TRBs. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-05-30 13:42:33 +03:00 · 2016-05-30 13:42:33 +03:00 · d6dc2e76a8
parent ba62c09d5c
commit d6dc2e76a8
1 changed files with 1 additions and 1 deletions
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@ -924,7 +924,7 @@ static void dwc3_prepare_one_trb_sg(struct dwc3_ep *dep,
 			chain = false;
 		}

-		if (!trbs_left)
+		if (!trbs_left--)
 			last = true;

 		if (last)