diff options
| author | Peter Hurley <peter@hurleysoftware.com> | 2013-09-19 00:47:06 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-09-26 01:08:34 (GMT) |
| commit | 469d6d0631386e6865a30c9ded87a5cc0fdf8e2e (patch) | |
| tree | 7d63fb0239348d42bbbccaf21d6664caec01e8d7 | |
| parent | e3bfea23a62dccfd12875a6cc24fa5c77e8a3c07 (diff) | |
| download | linux-469d6d0631386e6865a30c9ded87a5cc0fdf8e2e.tar.xz | |
tty: Remove unused drop() method from tty_port interface
Although originally conceived as a hook for port drivers to know
when a port reference is dropped, no driver uses this method.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/tty_port.c | 6 | ||||
| -rw-r--r-- | include/linux/tty.h | 1 |
2 files changed, 1 insertions, 6 deletions
diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c index 7efbca4..c94d234 100644 --- a/drivers/tty/tty_port.c +++ b/drivers/tty/tty_port.c @@ -484,8 +484,6 @@ int tty_port_close_start(struct tty_port *port, if (port->count) { spin_unlock_irqrestore(&port->lock, flags); - if (port->ops->drop) - port->ops->drop(port); return 0; } set_bit(ASYNCB_CLOSING, &port->flags); @@ -504,9 +502,7 @@ int tty_port_close_start(struct tty_port *port, /* Flush the ldisc buffering */ tty_ldisc_flush(tty); - /* Don't call port->drop for the last reference. Callers will want - to drop the last active reference in ->shutdown() or the tty - shutdown path */ + /* Report to caller this is the last port reference */ return 1; } EXPORT_SYMBOL(tty_port_close_start); diff --git a/include/linux/tty.h b/include/linux/tty.h index 64f8646..2f47989 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -180,7 +180,6 @@ struct tty_port_operations { IFF the port was initialized. Do not use to free resources. Called under the port mutex to serialize against activate/shutdowns */ void (*shutdown)(struct tty_port *port); - void (*drop)(struct tty_port *port); /* Called under the port mutex from tty_port_open, serialized using the port mutex */ /* FIXME: long term getting the tty argument *out* of this would be |