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-rw-r--r--drivers/char/tty_port.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/char/tty_port.c b/drivers/char/tty_port.c
index ff94182b3813..0723664fe0ab 100644
--- a/drivers/char/tty_port.c
+++ b/drivers/char/tty_port.c
@@ -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 */