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tty: tty port zero baud open

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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>
This commit is contained in:
Alan Cox 2009-01-02 13:46:43 +00:00 committed by Linus Torvalds
parent 0fdeceb88d
commit 7834909f1e
1 changed files with 2 additions and 1 deletions
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drivers/char/tty_port.c
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@ -216,6 +216,7 @@ int tty_port_block_til_ready(struct tty_port *port,
while (1) {
/* Indicate we are open */
if (tty->termios->c_cflag & CBAUD)
tty_port_raise_dtr_rts(port);
set_current_state(TASK_INTERRUPTIBLE);