USB: fix __must_check warnings in drivers/usb/serial/

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 1f21a9d4b700..03c619478a7c 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -932,7 +932,10 @@ int usb_serial_probe(struct usb_interface *interface,
 
                 snprintf (&port->dev.bus_id[0], sizeof(port->dev.bus_id), "ttyUSB%d", port->number);
                 dbg ("%s - registering %s", __FUNCTION__, port->dev.bus_id);
-                device_register (&port->dev);
+                retval = device_register(&port->dev);
+                if (retval)
+                        dev_err(&port->dev, "Error registering port device, "
+                                "continuing\n");
         }
 
         usb_serial_console_init (debug, minor);