diff options
| author | Jiri Slaby (SUSE) <jirislaby@kernel.org> | 2023-11-21 10:22:43 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-11-25 07:23:17 +0000 |
| commit | d22d53ad8ae8414c547c24de0b828a622fc45ea1 (patch) | |
| tree | c6692111aefe2eea2f84928fe34ab6f96de0fe5a /drivers/tty/tty_io.c | |
| parent | 4c74253b831e5a8eb87d4d8d4a0eae40c331e682 (diff) | |
tty: remove unneeded mbz from tiocsti()
'mbz' in tiocsti() is used only to pass TTY_NORMAL to
tty_ldisc_ops::receive_buf(). But that can be achieved easier by simply
passing NULL to ::receive_buf().
So drop this 'mbz'.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20231121092258.9334-3-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/tty_io.c')
| -rw-r--r-- | drivers/tty/tty_io.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index ee5a90f9adb5..005d91c63707 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -2280,7 +2280,7 @@ static bool tty_legacy_tiocsti __read_mostly = IS_ENABLED(CONFIG_LEGACY_TIOCSTI) */ static int tiocsti(struct tty_struct *tty, char __user *p) { - char ch, mbz = 0; + char ch; struct tty_ldisc *ld; if (!tty_legacy_tiocsti && !capable(CAP_SYS_ADMIN)) @@ -2296,7 +2296,7 @@ static int tiocsti(struct tty_struct *tty, char __user *p) return -EIO; tty_buffer_lock_exclusive(tty->port); if (ld->ops->receive_buf) - ld->ops->receive_buf(tty, &ch, &mbz, 1); + ld->ops->receive_buf(tty, &ch, NULL, 1); tty_buffer_unlock_exclusive(tty->port); tty_ldisc_deref(ld); return 0; |