From: Johan Hovold <jhovold@gmail.com>
Date: Sun, 5 May 2013 18:32:29 +0000 (+0200)
Subject: USB: ftdi_sio: clean up get_modem_status
X-Git-Tag: accepted/tizen/common/20141203.182822~2193^2~10
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c4133648bbce9e6b425a74cc890c8e4df51acaa9;p=platform%2Fkernel%2Flinux-arm64.git

USB: ftdi_sio: clean up get_modem_status

Use usb-serial port rather than tty as argument to get_modem_status.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 242b577..1159fd4 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -925,7 +925,7 @@ static int  ftdi_ioctl(struct tty_struct *tty,
 			unsigned int cmd, unsigned long arg);
 static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
 static int ftdi_chars_in_buffer(struct tty_struct *tty);
-static int ftdi_get_modem_status(struct tty_struct *tty,
+static int ftdi_get_modem_status(struct usb_serial_port *port,
 						unsigned char status[2]);
 
 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
@@ -2068,7 +2068,7 @@ static int ftdi_chars_in_buffer(struct tty_struct *tty)
 		goto out;
 
 	/* Check if hardware buffer is empty. */
-	ret = ftdi_get_modem_status(tty, buf);
+	ret = ftdi_get_modem_status(port, buf);
 	if (ret == 2) {
 		if (!(buf[1] & FTDI_RS_TEMT))
 			chars = 1;
@@ -2268,10 +2268,9 @@ no_c_cflag_changes:
  * Returns the number of status bytes retrieved (device dependant), or
  * negative error code.
  */
-static int ftdi_get_modem_status(struct tty_struct *tty,
+static int ftdi_get_modem_status(struct usb_serial_port *port,
 						unsigned char status[2])
 {
-	struct usb_serial_port *port = tty->driver_data;
 	struct ftdi_private *priv = usb_get_serial_port_data(port);
 	unsigned char *buf;
 	int len;
@@ -2336,7 +2335,7 @@ static int ftdi_tiocmget(struct tty_struct *tty)
 	unsigned char buf[2];
 	int ret;
 
-	ret = ftdi_get_modem_status(tty, buf);
+	ret = ftdi_get_modem_status(port, buf);
 	if (ret < 0)
 		return ret;