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458cd31a4c
Convert shutdown to be tty_port_operations->shutdown. Then we can use tty_port_hangup. (And we have to use tty_port_close.) This means we no longer touch ASYNC_INITIALIZED, TTY_IO_ERROR. Also we do not need to do any peculiar TTY logic in the file now. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>