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authorAlan Cox <alan@linux.intel.com>2010-06-01 22:52:52 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2010-08-10 13:47:41 -0700
commiteab4f5af6b07009d1fc48bac5f3215c0cbfb2fc3 (patch)
treee966fec1389f578bfcad82ba2e9ba831e93d815c /drivers/serial/21285.c
parent192251352f912bccfb942ea35801d2357f11f592 (diff)
downloadlinux-eab4f5af6b07009d1fc48bac5f3215c0cbfb2fc3.tar.bz2
tty: serial - fix tty back references in termios
One or two drivers go poking back into the tty from the termios setting routine in unsafe ways. We don't need to pass the tty down because the [ab]users are just using it to get at things they can get at anyway. This leaves low_latency setting to sort out along with set_ldisc use. Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/serial/21285.c')
-rw-r--r--drivers/serial/21285.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/drivers/serial/21285.c b/drivers/serial/21285.c
index 8681f1345056..d89aa38c5cf0 100644
--- a/drivers/serial/21285.c
+++ b/drivers/serial/21285.c
@@ -216,7 +216,7 @@ serial21285_set_termios(struct uart_port *port, struct ktermios *termios,
struct ktermios *old)
{
unsigned long flags;
- unsigned int baud, quot, h_lcr;
+ unsigned int baud, quot, h_lcr, b;
/*
* We don't support modem control lines.
@@ -234,12 +234,8 @@ serial21285_set_termios(struct uart_port *port, struct ktermios *termios,
*/
baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
quot = uart_get_divisor(port, baud);
-
- if (port->state && port->state->port.tty) {
- struct tty_struct *tty = port->state->port.tty;
- unsigned int b = port->uartclk / (16 * quot);
- tty_encode_baud_rate(tty, b, b);
- }
+ b = port->uartclk / (16 * quot);
+ tty_termios_encode_baud_rate(termios, b, b);
switch (termios->c_cflag & CSIZE) {
case CS5: