Fix coding style issues detected by checkpatch.pl in usbip_host_driver.c. v3: Shorten subject line, as suggested by Greg Kroah-Hartman <gregkh at linuxfoundation.org>, Joe Perches <joe at perches.com> v2: Split patch into logical chunks, as suggested by Greg Kroah-Hartman <gregkh at linuxfoundation.org>