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Diffstat (limited to 'drivers/char/tty_port.c')
-rw-r--r--drivers/char/tty_port.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/char/tty_port.c b/drivers/char/tty_port.c
index a4bbb28f10b..2e8552dc5ed 100644
--- a/drivers/char/tty_port.c
+++ b/drivers/char/tty_port.c
@@ -221,6 +221,9 @@ int tty_port_block_til_ready(struct tty_port *port,
the port has just hung up or is in another error state */
if ((filp->f_flags & O_NONBLOCK) ||
(tty->flags & (1 << TTY_IO_ERROR))) {
+ /* Indicate we are open */
+ if (tty->termios->c_cflag & CBAUD)
+ tty_port_raise_dtr_rts(port);
port->flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}