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-rw-r--r--drivers/usb/gadget/udc/udc-core.c5
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);