DWC3 must check for the BUFSIZ and update the req->remaining
regardless of transfer alignment. Returning early from transfer OUT
unalignment will skip updating the req->remaining.
Fixes: c6267a51639b ("usb: dwc3: gadget: align transfers to wMaxPacketSize")
Signed-off-by: Thinh Nguyen <thinhn@xxxxxxxxxxxx>
---
drivers/usb/dwc3/gadget.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 032ea7d709ba..a5b8387a37ba 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2246,6 +2246,9 @@ static int dwc3_gadget_ep_reclaim_completed_trb(struct dwc3_ep *dep,
if (chain && (trb->ctrl & DWC3_TRB_CTRL_HWO))
trb->ctrl &= ~DWC3_TRB_CTRL_HWO;
+ count = trb->size & DWC3_TRB_SIZE_MASK;
+ req->remaining += count;
+
/*
* If we're dealing with unaligned size OUT transfer, we will be left
* with one TRB pending in the ring. We need to manually clear HWO bit
@@ -2256,9 +2259,6 @@ static int dwc3_gadget_ep_reclaim_completed_trb(struct dwc3_ep *dep,
return 1;
}
- count = trb->size & DWC3_TRB_SIZE_MASK;
- req->remaining += count;
-
if ((trb->ctrl & DWC3_TRB_CTRL_HWO) && status != -ESHUTDOWN)
return 1;
--
2.11.0
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