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TTY: use tty_wait_until_sent_from_close in other drivers

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Let's use the newly added helper to avoid stalls in drivers which are
not yet ported to tty_port helpers.

Those which are broken (call tty_wait_until_sent with irqs disabled)
are left untouched. They are in a deeper trouble than we are trying to
solve here. This includes amiserial, 68328serial, 68360serial and
crisv10.

Signed-off-by: Jiri Slaby <[email protected]>
Acked-by: Arnd Bergmann <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Jiri Slaby 2011-08-25 15:12:08 +02:00 • committed by Greg Kroah-Hartman
commit 0b058353ab
5 changed files with 6 additions and 5 deletions
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2
drivers/isdn/i4l/isdn_tty.c
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@ -1693,7 +1693,7 @@ isdn_tty_close(struct tty_struct *tty, struct file *filp)
* line status register.
*/
if (info->flags & ISDN_ASYNC_INITIALIZED) {
tty_wait_until_sent(tty, 3000); /* 30 seconds timeout */
tty_wait_until_sent_from_close(tty, 3000); /* 30 seconds timeout */
/*
* Before we drop DTR, make sure the UART transmitter
* has completely drained; this is especially