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authorPeter Hurley <peter@hurleysoftware.com>2013-09-19 04:47:06 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-09-26 05:08:34 +0400
commit469d6d0631386e6865a30c9ded87a5cc0fdf8e2e (patch)
tree7d63fb0239348d42bbbccaf21d6664caec01e8d7 /drivers/tty/tty_port.c
parente3bfea23a62dccfd12875a6cc24fa5c77e8a3c07 (diff)
downloadlinux-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>
Diffstat (limited to 'drivers/tty/tty_port.c')
-rw-r--r--drivers/tty/tty_port.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
index 7efbca474689..c94d2349dd06 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);