This patch remove variables that are initialized with a constant,
are never updated, and are only used as parameter of return.
Return the constant instead of using a variable.
Verified by compilation only.
The coccinelle script that find and fixes this issue is:
// <smpl>
@@
type T;
constant C;
identifier ret;
@@
- T ret = C;
... when != ret
when strict
return
- ret
+ C
;
// </smpl>
Signed-off-by: Peter Senna Tschudin <peter.se...@gmail.com>
---
drivers/usb/serial/kl5kusb105.c | 23 +----------------------
1 file changed, 1 insertion(+), 22 deletions(-)
diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c
index d7440b7..2657c00 100644
--- a/drivers/usb/serial/kl5kusb105.c
+++ b/drivers/usb/serial/kl5kusb105.c
@@ -605,28 +605,7 @@ static int klsi_105_tiocmget(struct tty_struct *tty)
static int klsi_105_tiocmset(struct tty_struct *tty,
unsigned int set, unsigned int clear)
{
- int retval = -EINVAL;
-
-/* if this ever gets implemented, it should be done something like this:
- struct usb_serial *serial = port->serial;
- struct klsi_105_private *priv = usb_get_serial_port_data(port);
- unsigned long flags;
- int control;
-
- spin_lock_irqsave (&priv->lock, flags);
- if (set & TIOCM_RTS)
- priv->control_state |= TIOCM_RTS;
- if (set & TIOCM_DTR)
- priv->control_state |= TIOCM_DTR;
- if (clear & TIOCM_RTS)
- priv->control_state &= ~TIOCM_RTS;
- if (clear & TIOCM_DTR)
- priv->control_state &= ~TIOCM_DTR;
- control = priv->control_state;
- spin_unlock_irqrestore (&priv->lock, flags);
- retval = mct_u232_set_modem_ctrl(serial, control);
-*/
- return retval;
+ return -EINVAL;
}
module_usb_serial_driver(serial_drivers, id_table);
--
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