usb: dwc3: gadget: stop processing on HWO set
stop consuming TRBs when we reach one with HWO bit
already set. This will prevent us from prematurely
retiring a TRB.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 7a4d4d2..1f5597e 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1979,16 +1979,7 @@
trb->ctrl &= ~DWC3_TRB_CTRL_HWO;
if ((trb->ctrl & DWC3_TRB_CTRL_HWO) && status != -ESHUTDOWN)
- /*
- * We continue despite the error. There is not much we
- * can do. If we don't clean it up we loop forever. If
- * we skip the TRB then it gets overwritten after a
- * while since we use them in a ring buffer. A BUG()
- * would help. Lets hope that if this occurs, someone
- * fixes the root cause instead of looking away :)
- */
- dev_err(dwc->dev, "%s's TRB (%p) still owned by HW\n",
- dep->name, trb);
+ return 1;
count = trb->size & DWC3_TRB_SIZE_MASK;