1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/usb/gadget/imx_udc.c b/drivers/usb/gadget/imx_udc.c
index 239bf8ed9f4a..c52a681f376c 100644
--- a/drivers/usb/gadget/imx_udc.c
+++ b/drivers/usb/gadget/imx_udc.c
@@ -415,6 +415,13 @@ static int write_packet(struct imx_ep_struct *imx_ep, struct imx_request *req)
         u8      *buf;
         int     length, count, temp;
 
+        if (unlikely(__raw_readl(imx_ep->imx_usb->base +
+                                 USB_EP_STAT(EP_NO(imx_ep))) & EPSTAT_ZLPS)) {
+                D_TRX(imx_ep->imx_usb->dev, "<%s> zlp still queued in EP %s\n",
+                        __func__, imx_ep->ep.name);
+                return -1;
+        }
+
         buf = req->req.buf + req->req.actual;
         prefetch(buf);