staging: comedi: addi_apci_3xxx: checkpatch.pl cleanup (else after return)

Fix the checkpatch.pl warning in this file:

WARNING: else is not generally useful after a break or return

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/comedi/drivers/addi_apci_3xxx.c
Simple merge