Merge branch 'can-slcan-checkpatch-cleanups'

Marc Kleine-Budde says:

====================
can: slcan: checkpatch cleanups

This is a patch series consisting of various checkpatch cleanups for
the slcan driver.
====================

Link: https://lore.kernel.org/all/20220704125954.1587880-1-mkl@pengutronix.de


Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>