Author: Markus Elfring <elfring@users.sourceforge.net> The functions put_device() and tty_kref_put() test whether their argument is NULL and then return immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring Signed-off-by: Greg Kroah-Hartman — drivers/tty/tty_io.c | 6 ++—- drivers/tty/tty_port.c | 3 +– 2 files changed, …