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authorAlan Cox <alan@redhat.com>2009-01-02 13:46:43 +0000
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-02 10:19:40 -0800
commit7834909f1eb96ba7c49ca2b9e3a69b500a2cff76 (patch)
tree2b9c903d63de8f426b1b55f4d9401406fc0cf83f /drivers
parent0fdeceb88df7f4d9e4734859bcd650e8584cc0e4 (diff)
tty: tty port zero baud open
If we have no speed set at some point then we should not raise DTR/RTS at that point when opening as the tty is not ready Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
-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 ff94182b381..0723664fe0a 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 */