cppcheck blamed some issues in drivers/s390/net/...
They are fixed here.
Signed-off-by: NUrsula Braun <ursula.braun@de.ibm.com>
Signed-off-by: NFrank Blaschka <blaschka@linux.vnet.ibm.com>
Reported-by: NToralf Foerster <toralf.foerster@gmx.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>