diff options
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 867adc9a2496..b59893c3093a 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2041,6 +2041,14 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep, break; } while (1); + /* + * Our endpoint might get disabled by another thread during + * dwc3_gadget_giveback(). If that happens, we're just gonna return 1 + * early on so DWC3_EP_BUSY flag gets cleared + */ + if (!dep->endpoint.desc) + return 1; + if (usb_endpoint_xfer_isoc(dep->endpoint.desc) && list_empty(&dep->started_list)) { if (list_empty(&dep->pending_list)) { @@ -2078,7 +2086,7 @@ static void dwc3_endpoint_transfer_complete(struct dwc3 *dwc, status = -ECONNRESET; clean_busy = dwc3_cleanup_done_reqs(dwc, dep, event, status); - if (clean_busy && (is_xfer_complete || + if (clean_busy && (!dep->endpoint.desc || is_xfer_complete || usb_endpoint_xfer_isoc(dep->endpoint.desc))) dep->flags &= ~DWC3_EP_BUSY; @@ -2107,6 +2115,14 @@ static void dwc3_endpoint_transfer_complete(struct dwc3 *dwc, dwc->u1u2 = 0; } + /* + * Our endpoint might get disabled by another thread during + * dwc3_gadget_giveback(). If that happens, we're just gonna return 1 + * early on so DWC3_EP_BUSY flag gets cleared + */ + if (!dep->endpoint.desc) + return; + if (!usb_endpoint_xfer_isoc(dep->endpoint.desc)) { int ret; |