USB: kobil_sct: Get rid of unneeded priv->line_state

Signed-off-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/usb/serial/kobil_sct.c

@@ -139,7 +139,6 @@ struct kobil_private {
 	int filled;  // index of the last char in buf
 	int cur_pos; // index of the next char to send in buf
 	__u16 device_type;
-	int line_state;
 };
 
 
@@ -161,7 +160,6 @@ static int kobil_startup (struct usb_serial *serial)
 	priv->filled = 0;
 	priv->cur_pos = 0;
 	priv->device_type = le16_to_cpu(serial->dev->descriptor.idProduct);
-	priv->line_state = 0;
 
 	switch (priv->device_type){
 	case KOBIL_ADAPTER_B_PRODUCT_ID:
@@ -226,7 +224,6 @@ static int kobil_open (struct usb_serial_port *port, struct file *filp)
 
 	dbg("%s - port %d", __FUNCTION__, port->number);
 	priv = usb_get_serial_port_data(port);
-	priv->line_state = 0;
 
 	// someone sets the dev to 0 if the close method has been called
 	port->interrupt_in_urb->dev = port->serial->dev;
@@ -524,14 +521,11 @@ static int kobil_tiocmget(struct usb_serial_port *port, struct file *file)
 	dbg("%s - port %d Send get_status_line_state URB returns: %i. Statusline: %02x", 
 	    __FUNCTION__, port->number, result, transfer_buffer[0]);
 
-	if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0) {
-		priv->line_state |= TIOCM_DSR;
-	} else {
-		priv->line_state &= ~TIOCM_DSR; 
-	}
-
+	result = 0;
+	if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0)
+		result = TIOCM_DSR;
 	kfree(transfer_buffer);
-	return priv->line_state;
+	return result;
 }
 
 static int  kobil_tiocmset(struct usb_serial_port *port, struct file *file,
@@ -544,6 +538,7 @@ static int  kobil_tiocmset(struct usb_serial_port *port, struct file *file,
 	unsigned char *transfer_buffer;
 	int transfer_buffer_length = 8;
 
+	/* FIXME: locking ? */
 	priv = usb_get_serial_port_data(port);
 	if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) || (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) {
 		// This device doesn't support ioctl calls