usb: misc: adutux: fix whitespace coding style issue

index 45a387979935..6d15a097b007 100644
@@ -183,10 +183,10 @@ static void adu_interrupt_in_callback(struct urb *urb)
 				dev->interrupt_in_buffer, urb->actual_length);
 
 			dev->read_buffer_length += urb->actual_length;
-			dev_dbg(&dev->udev->dev,"%s reading  %d\n", __func__,
+			dev_dbg(&dev->udev->dev, "%s reading  %d\n", __func__,
 				urb->actual_length);
 		} else {
-			dev_dbg(&dev->udev->dev,"%s : read_buffer overflow\n",
+			dev_dbg(&dev->udev->dev, "%s : read_buffer overflow\n",
 				__func__);
 		}
 	}

@@ -726,7 +726,7 @@ static int adu_probe(struct usb_interface *interface,
 		retval = -EIO;
 		goto error;
 	}
-	dev_dbg(&interface->dev,"serial_number=%s", dev->serial_number);
+	dev_dbg(&interface->dev, "serial_number=%s", dev->serial_number);
 
 	/* we can register the device now, as it is ready */
 	usb_set_intfdata(interface, dev);