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authorJohan Hovold <jhovold@gmail.com>2013-04-12 12:32:31 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-04-13 01:08:18 +0400
commite1c969f7814dcd23bbfe8d777544321a492b6fee (patch)
tree212c9e69e2a7d39446180711e0e10ed0b112a1a3 /net
parent53a72d57515b2c94af616bceab79751f894eca56 (diff)
downloadlinux-e1c969f7814dcd23bbfe8d777544321a492b6fee.tar.xz
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>
Diffstat (limited to 'net')
-rw-r--r--net/irda/ircomm/ircomm_tty.c2
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);