[PATCH] USB ftdi_sio: remove redundant TIOCMBIS and TIOCMBIC code

ftdi_sio: Remove redundant handling of TIOCMBIS and TIOCMBIC ioctls
as they are handled in the tty layer and never reach this driver.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 0 insertions, 47 deletions

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index f843f7358867..aad2f4d0e09c 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1985,53 +1985,6 @@ static int ftdi_ioctl (struct usb_serial_port *port, struct file * file, unsigne
         /* Based on code from acm.c and others */
         switch (cmd) {
 
-        case TIOCMBIS: /* turns on (Sets) the lines as specified by the mask */
-                dbg("%s TIOCMBIS", __FUNCTION__);
-                if (get_user(mask, (unsigned long __user *) arg))
-                        return -EFAULT;
-                if (mask & TIOCM_DTR){
-                        if ((ret = set_dtr(port, HIGH)) < 0) {
-                                err("Urb to set DTR failed");
-                                return(ret);
-                        }
-                }
-                if (mask & TIOCM_RTS) {
-                        if ((ret = set_rts(port, HIGH)) < 0){
-                                err("Urb to set RTS failed");
-                                return(ret);
-                        }
-                }
-                return(0);
-                break;
-
-        case TIOCMBIC: /* turns off (Clears) the lines as specified by the mask */
-                dbg("%s TIOCMBIC", __FUNCTION__);
-                if (get_user(mask, (unsigned long __user *) arg))
-                        return -EFAULT;
-                if (mask & TIOCM_DTR){
-                        if ((ret = set_dtr(port, LOW)) < 0){
-                                err("Urb to unset DTR failed");
-                                return(ret);
-                        }
-                }       
-                if (mask & TIOCM_RTS) {
-                        if ((ret = set_rts(port, LOW)) < 0){
-                                err("Urb to unset RTS failed");
-                                return(ret);
-                        }
-                }
-                return(0);
-                break;
-
-                /*
-                 * I had originally implemented TCSET{A,S}{,F,W} and
-                 * TCGET{A,S} here separately, however when testing I
-                 * found that the higher layers actually do the termios
-                 * conversions themselves and pass the call onto
-                 * ftdi_sio_set_termios. 
-                 *
-                 */
-
         case TIOCGSERIAL: /* gets serial port data */
                 return get_serial_info(port, (struct serial_struct __user *) arg);