serial: speed setup failure reporting

Invalid speeds are forced to 9600. Update the code for this to encode new
style baud rates properly.

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index 304fe32eb066289caf53fddc6d7a96bea3e2dd84..276da148c57e015a6a148ec60a028d3d2e840ba6 100644 (file)
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -371,7 +371,8 @@ uart_get_baud_rate(struct uart_port *port, struct ktermios *termios,
                 */
                termios->c_cflag &= ~CBAUD;
                if (old) {
-                       termios->c_cflag |= old->c_cflag & CBAUD;
+                       baud = tty_termios_baud_rate(old);
+                       tty_termios_encode_baud_rate(termios, baud, baud);
                        old = NULL;
                        continue;
                }
@@ -380,7 +381,7 @@ uart_get_baud_rate(struct uart_port *port, struct ktermios *termios,
                 * As a last resort, if the quotient is zero,
                 * default to 9600 bps
                 */
-               termios->c_cflag |= B9600;
+               tty_termios_encode_baud_rate(termios, 9600, 9600);
        }
 
        return 0;