From 7eea436433b7b18045f272562e256976f593f7c0 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Wed, 14 Nov 2007 17:00:39 -0800 Subject: [PATCH] keyspan: init termios properly Remove redundant code leading to NULL ptr deref and let terminal config settings take place in the proper initialization path in usb_console_setup(). Signed-off-by: Borislav Petkov Cc: Cc: Greg KH Cc: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/usb/serial/keyspan.c | 38 ++++++-------------------------------- 1 file changed, 6 insertions(+), 32 deletions(-) diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index 6bfdba6..1f7ab15 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -1215,20 +1215,18 @@ static int keyspan_chars_in_buffer (struct usb_serial_port *port) static int keyspan_open (struct usb_serial_port *port, struct file *filp) { - struct keyspan_port_private *p_priv; - struct keyspan_serial_private *s_priv; - struct usb_serial *serial = port->serial; + struct keyspan_port_private *p_priv; + struct keyspan_serial_private *s_priv; + struct usb_serial *serial = port->serial; const struct keyspan_device_details *d_details; int i, err; - int baud_rate, device_port; struct urb *urb; - unsigned int cflag; s_priv = usb_get_serial_data(serial); p_priv = usb_get_serial_port_data(port); d_details = p_priv->device_details; - - dbg("%s - port%d.", __FUNCTION__, port->number); + + dbg("%s - port%d.", __FUNCTION__, port->number); /* Set some sane defaults */ p_priv->rts_state = 1; @@ -1249,7 +1247,7 @@ static int keyspan_open (struct usb_serial_port *port, struct file *filp) urb->dev = serial->dev; /* make sure endpoint data toggle is synchronized with the device */ - + usb_clear_halt(urb->dev, urb->pipe); if ((err = usb_submit_urb(urb, GFP_KERNEL)) != 0) { @@ -1265,30 +1263,6 @@ static int keyspan_open (struct usb_serial_port *port, struct file *filp) /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), usb_pipeout(urb->pipe), 0); */ } - /* get the terminal config for the setup message now so we don't - * need to send 2 of them */ - - cflag = port->tty->termios->c_cflag; - device_port = port->number - port->serial->minor; - - /* Baud rate calculation takes baud rate as an integer - so other rates can be generated if desired. */ - baud_rate = tty_get_baud_rate(port->tty); - /* If no match or invalid, leave as default */ - if (baud_rate >= 0 - && d_details->calculate_baud_rate(baud_rate, d_details->baudclk, - NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) { - p_priv->baud = baud_rate; - } - - /* set CTS/RTS handshake etc. */ - p_priv->cflag = cflag; - p_priv->flow_control = (cflag & CRTSCTS)? flow_cts: flow_none; - - keyspan_send_setup(port, 1); - //mdelay(100); - //keyspan_set_termios(port, NULL); - return (0); } -- 2.7.4