diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2020-02-19 09:41:04 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-21 10:24:33 +0100 |
| commit | 4040c828607975fbdc4c557a85bde115c524e857 (patch) | |
| tree | f4739aa36c09f127a7c032a9c9ef1e19a3f5a1d4 /drivers/tty/n_hdlc.c | |
| parent | a1274b26ac2780ea21ef69507421b43d0f5a8a4a (diff) | |
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>
Diffstat (limited to 'drivers/tty/n_hdlc.c')
| -rw-r--r-- | drivers/tty/n_hdlc.c | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/drivers/tty/n_hdlc.c b/drivers/tty/n_hdlc.c index d0e538ba51ea..ae6b9a45ae81 100644 --- a/drivers/tty/n_hdlc.c +++ b/drivers/tty/n_hdlc.c @@ -125,7 +125,6 @@ struct n_hdlc_buf_list { * struct n_hdlc - per device instance data structure * @magic - magic value for structure * @tty - ptr to TTY structure - * @backup_tty - TTY to use if tty gets closed * @tbusy - reentrancy flag for tx wakeup code * @woke_up - FIXME: describe this field * @tx_buf_list - list of pending transmit frame buffers @@ -136,7 +135,6 @@ struct n_hdlc_buf_list { struct n_hdlc { int magic; struct tty_struct *tty; - struct tty_struct *backup_tty; int tbusy; int woke_up; struct n_hdlc_buf_list tx_buf_list; @@ -267,15 +265,9 @@ static void n_hdlc_tty_close(struct tty_struct *tty) clear_bit(TTY_NO_WRITE_SPLIT,&tty->flags); #endif tty->disc_data = NULL; - if (tty == n_hdlc->backup_tty) - n_hdlc->backup_tty = NULL; if (tty != n_hdlc->tty) return; - if (n_hdlc->backup_tty) { - n_hdlc->tty = n_hdlc->backup_tty; - } else { - n_hdlc_release (n_hdlc); - } + n_hdlc_release (n_hdlc); } /* end of n_hdlc_tty_close() */ /** |