Author: Markus Elfring <elfring@users.sourceforge.net> The debug_unregister() function performs also input parameter validation. Thus the test around the calls is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky — drivers/s390/cio/chsc_sch.c | 3 +– drivers/s390/cio/cio.c | 9 +++—— drivers/s390/cio/qdio_debug.c | 6 ++—- drivers/s390/crypto/zcrypt_api.c | 6 …