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It's only set, but never read because commit 01261cb94318 ("tty: ipwireless: Remove tty->closing abort from ipw_open()") removed last use of tty::closing. Cc: Jiri Kosina <jikos@kernel.org> Cc: David Sterba <dsterba@suse.com> Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20210610090307.2689-1-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>