3fdfa165d79b ("mxser: restore baud rate if its setting fails")
ef3dff8a0af9 ("mxser: remove MOXA_SET_BAUD_METHOD ioctl")
4463cc5b8cbe ("mxser: integrate mxser.h into .c")
beca62c4212a ("tty: mxser: make mxser_change_speed() return void")