usb: chipidea: isr_reset_handler fix missing locking

Move spin_lock under the done label, so the
lock will also be pulled in the error paths.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
[rebased on top of the patchset]
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/chipidea/udc.c

@@ -645,9 +645,9 @@ __acquires(udc->lock)
 	if (udc->status == NULL)
 		retval = -ENOMEM;
 
+done:
 	spin_lock(&udc->lock);
 
- done:
 	if (retval)
 		dev_err(udc->dev, "error: %i\n", retval);
 }