Commit 7eea4364 authored by Borislav Petkov's avatar Borislav Petkov Committed by Linus Torvalds

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: default avatarBorislav Petkov <bbpetkov@yahoo.de>
Cc: <lucy@keyspan.com>
Cc: Greg KH <greg@kroah.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 5bfeca31
...@@ -1220,9 +1220,7 @@ static int keyspan_open (struct usb_serial_port *port, struct file *filp) ...@@ -1220,9 +1220,7 @@ static int keyspan_open (struct usb_serial_port *port, struct file *filp)
struct usb_serial *serial = port->serial; struct usb_serial *serial = port->serial;
const struct keyspan_device_details *d_details; const struct keyspan_device_details *d_details;
int i, err; int i, err;
int baud_rate, device_port;
struct urb *urb; struct urb *urb;
unsigned int cflag;
s_priv = usb_get_serial_data(serial); s_priv = usb_get_serial_data(serial);
p_priv = usb_get_serial_port_data(port); p_priv = usb_get_serial_port_data(port);
...@@ -1265,30 +1263,6 @@ static int keyspan_open (struct usb_serial_port *port, struct file *filp) ...@@ -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); */ /* 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); return (0);
} }
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment