Messages in this thread Patch in this message | | | From | Johan Hovold <> | Subject | [PATCH 2/4] TTY: synclink_gt: fix DTR being raised on hang up | Date | Fri, 12 Apr 2013 10:32:29 +0200 |
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Make sure to check ASYNC_INITIALISED before raising DTR when waking up from blocked open in block_til_ready.
Currently DTR could get raised at hang up as a blocked process would raise DTR unconditionally before checking for hang up and returning.
Signed-off-by: Johan Hovold <jhovold@gmail.com> --- drivers/tty/synclink_gt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c index aa9eece..1abf946 100644 --- a/drivers/tty/synclink_gt.c +++ b/drivers/tty/synclink_gt.c @@ -3308,7 +3308,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, port->blocked_open++; while (1) { - if ((tty->termios.c_cflag & CBAUD)) + if (C_BAUD(tty) && test_bit(ASYNCB_INITIALIZED, &port->flags)) tty_port_raise_dtr_rts(port); set_current_state(TASK_INTERRUPTIBLE); -- 1.8.1.5
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