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| author | Johan Hovold <jhovold@gmail.com> | 2013-04-12 10:32:31 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-12 14:08:18 -0700 |
| commit | e1c969f7814dcd23bbfe8d777544321a492b6fee (patch) | |
| tree | 212c9e69e2a7d39446180711e0e10ed0b112a1a3 | |
| parent | 53a72d57515b2c94af616bceab79751f894eca56 (diff) | |
| download | linux-e1c969f7814dcd23bbfe8d777544321a492b6fee.tar.bz2 | |
TTY: ircomm: fix DTR being raised on hang up
Make sure to check ASYNC_INITIALISED before raising DTR when waking up
from blocked open in ircomm_tty_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>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/irda/ircomm/ircomm_tty.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c index 362ba47968e4..41ac7938268b 100644 --- a/net/irda/ircomm/ircomm_tty.c +++ b/net/irda/ircomm/ircomm_tty.c @@ -328,7 +328,7 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self, spin_unlock_irqrestore(&port->lock, flags); 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); |