diff options
Diffstat (limited to 'drivers/usb/gadget/udc')
| -rw-r--r-- | drivers/usb/gadget/udc/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/udc-core.c | 5 |
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/gadget/udc/Kconfig b/drivers/usb/gadget/udc/Kconfig index 3ea287b0e448..217365d35a25 100644 --- a/drivers/usb/gadget/udc/Kconfig +++ b/drivers/usb/gadget/udc/Kconfig @@ -357,6 +357,7 @@ config USB_EG20T config USB_GADGET_XILINX tristate "Xilinx USB Driver" + depends on HAS_DMA depends on OF || COMPILE_TEST help USB peripheral controller driver for Xilinx USB2 device. 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); |