[bug report] usb: cdns3: add power lost support for system resume

[Dan Carpenter <dan.carpenter@xxxxxxxxxx>]

Hello Frank Li,

The patch c450e48eb570: "usb: cdns3: add power lost support for
system resume" from Feb 18, 2021, leads to the following static
checker warning:

	drivers/usb/cdns3/core.c:551 cdns_resume()
	error: uninitialized symbol 'ret'.

drivers/usb/cdns3/core.c
   544  
   545                  if (!role_changed) {
   546                          if (cdns->role == USB_ROLE_HOST)
   547                                  ret = cdns_drd_host_on(cdns);
   548                          else if (cdns->role == USB_ROLE_DEVICE)
   549                                  ret = cdns_drd_gadget_on(cdns);

What about is "ret" if the role is USB_ROLE_NONE?

   550  
   551                          if (ret)
   552                                  return ret;
   553                  }
   554          }
   555  

regards,
dan carpenter