tty: tty port zero baud open
authorAlan Cox <alan@redhat.com>
Fri, 2 Jan 2009 13:46:43 +0000 (13:46 +0000)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 2 Jan 2009 18:19:40 +0000 (10:19 -0800)
If we have no speed set at some point then we should not raise DTR/RTS at
that point when opening as the tty is not ready

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/char/tty_port.c

index ff94182b381368b81543abdc4c2f0641d4e3c92d..0723664fe0ab5487d95be284b7c5a5c12139ddfb 100644 (file)
@@ -216,7 +216,8 @@ int tty_port_block_til_ready(struct tty_port *port,
 
        while (1) {
                /* Indicate we are open */
-               tty_port_raise_dtr_rts(port);
+               if (tty->termios->c_cflag & CBAUD)
+                       tty_port_raise_dtr_rts(port);
 
                set_current_state(TASK_INTERRUPTIBLE);
                /* Check for a hangup or uninitialised port. Return accordingly */