n_hdlc: remove unused backup_tty
authorJiri Slaby <jslaby@suse.cz>
Wed, 19 Feb 2020 08:41:04 +0000 (09:41 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 21 Feb 2020 09:24:33 +0000 (10:24 +0100)
commit4040c828607975fbdc4c557a85bde115c524e857
treef4739aa36c09f127a7c032a9c9ef1e19a3f5a1d4
parenta1274b26ac2780ea21ef69507421b43d0f5a8a4a
n_hdlc: remove unused backup_tty

It's only set to NULL and never properly used.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20200219084118.26491-10-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/n_hdlc.c