1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/usb/gadget/udc/udc-core.c b/drivers/usb/gadget/udc/udc-core.c
index f107bb60a5ab..f2054659f25b 100644
--- a/drivers/usb/gadget/udc/udc-core.c
+++ b/drivers/usb/gadget/udc/udc-core.c
@@ -507,6 +507,11 @@ static ssize_t usb_udc_softconn_store(struct device *dev,
 {
         struct usb_udc          *udc = container_of(dev, struct usb_udc, dev);
 
+        if (!udc->driver) {
+                dev_err(dev, "soft-connect without a gadget driver\n");
+                return -EOPNOTSUPP;
+        }
+
         if (sysfs_streq(buf, "connect")) {
                 usb_gadget_udc_start(udc->gadget, udc->driver);
                 usb_gadget_connect(udc->gadget);