[PATCH 2/5] usb: dwc3: gadget: Force sending delayed status during soft disconnect

From: Wesley Cheng
Date: Fri Jul 08 2022 - 14:50:54 EST

If any function drivers request for a delayed status phase, this leads to a
SETUP transfer timeout error, since the function may take longer to process
the DATA stage. This eventually results in end transfer timeouts, as there
is a pending SETUP transaction.

Signed-off-by: Wesley Cheng <quic_wcheng@xxxxxxxxxxx>
drivers/usb/dwc3/gadget.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 298e842c384c..75cbc3f185d0 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2513,6 +2513,9 @@ static int dwc3_gadget_soft_disconnect(struct dwc3 *dwc)
if (dwc->ep0state != EP0_SETUP_PHASE) {
int ret;

+ if (dwc->delayed_status)
+ dwc3_ep0_send_delayed_status(dwc);

spin_unlock_irqrestore(&dwc->lock, flags);