tty: Convert the USB drivers to the new icount interface

Simple pasting job using the new ops function. Also fix a couple of devices
directly returning the internal struct (which happens at this point to match
for the fields that matter but isn't correct or futureproof)

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 27 insertions, 22 deletions

diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index 76e6fb3aab7..a0ab78ada25 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -222,6 +222,8 @@ static void edge_break(struct tty_struct *tty, int break_state);
 static int  edge_tiocmget(struct tty_struct *tty, struct file *file);
 static int  edge_tiocmset(struct tty_struct *tty, struct file *file,
 					unsigned int set, unsigned int clear);
+static int  edge_get_icount(struct tty_struct *tty,
+				struct serial_icounter_struct *icount);
 static int  edge_startup(struct usb_serial *serial);
 static void edge_disconnect(struct usb_serial *serial);
 static void edge_release(struct usb_serial *serial);
@@ -1624,6 +1626,31 @@ static int edge_tiocmget(struct tty_struct *tty, struct file *file)
 	return result;
 }
 
+static int edge_get_icount(struct tty_struct *tty,
+				struct serial_icounter_struct *icount)
+{
+	struct usb_serial_port *port = tty->driver_data;
+	struct edgeport_port *edge_port = usb_get_serial_port_data(port);
+	struct async_icount cnow;
+	cnow = edge_port->icount;
+
+	icount->cts = cnow.cts;
+	icount->dsr = cnow.dsr;
+	icount->rng = cnow.rng;
+	icount->dcd = cnow.dcd;
+	icount->rx = cnow.rx;
+	icount->tx = cnow.tx;
+	icount->frame = cnow.frame;
+	icount->overrun = cnow.overrun;
+	icount->parity = cnow.parity;
+	icount->brk = cnow.brk;
+	icount->buf_overrun = cnow.buf_overrun;
+
+	dbg("%s (%d) TIOCGICOUNT RX=%d, TX=%d",
+			__func__,  port->number, icount->rx, icount->tx);
+	return 0;
+}
+
 static int get_serial_info(struct edgeport_port *edge_port,
 				struct serial_struct __user *retinfo)
 {
@@ -1650,7 +1677,6 @@ static int get_serial_info(struct edgeport_port *edge_port,
 }
 
 
-
 /*****************************************************************************
  * SerialIoctl
  *	this function handles any ioctl calls to the driver
@@ -1663,7 +1689,6 @@ static int edge_ioctl(struct tty_struct *tty, struct file *file,
 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);
 	struct async_icount cnow;
 	struct async_icount cprev;
-	struct serial_icounter_struct icount;
 
 	dbg("%s - port %d, cmd = 0x%x", __func__, port->number, cmd);
 
@@ -1702,26 +1727,6 @@ static int edge_ioctl(struct tty_struct *tty, struct file *file,
 		/* NOTREACHED */
 		break;
 
-	case TIOCGICOUNT:
-		cnow = edge_port->icount;
-		memset(&icount, 0, sizeof(icount));
-		icount.cts = cnow.cts;
-		icount.dsr = cnow.dsr;
-		icount.rng = cnow.rng;
-		icount.dcd = cnow.dcd;
-		icount.rx = cnow.rx;
-		icount.tx = cnow.tx;
-		icount.frame = cnow.frame;
-		icount.overrun = cnow.overrun;
-		icount.parity = cnow.parity;
-		icount.brk = cnow.brk;
-		icount.buf_overrun = cnow.buf_overrun;
-
-		dbg("%s (%d) TIOCGICOUNT RX=%d, TX=%d",
-				__func__,  port->number, icount.rx, icount.tx);
-		if (copy_to_user((void __user *)arg, &icount, sizeof(icount)))
-			return -EFAULT;
-		return 0;
 	}
 	return -ENOIOCTLCMD;
 }