From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date: Tue, 5 Feb 2008 06:27:53 +0000 (-0800)
Subject: serial: speed setup failure reporting
X-Git-Tag: firefly_0821_release~23513
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6d4d67beb963de8865499781b8523e5b683819c3;p=firefly-linux-kernel-4.4.55.git

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 304fe32eb066..276da148c57e 100644
--- 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;