TTY: use tty_wait_until_sent_from_close in other drivers
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 <jslaby@suse.cz> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Greg Kroah-Hartman
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424cc03912
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0b058353ab
@ -1292,7 +1292,8 @@ static void uart_close(struct tty_struct *tty, struct file *filp)
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spin_unlock_irqrestore(&port->lock, flags);
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if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE)
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tty_wait_until_sent(tty, msecs_to_jiffies(port->closing_wait));
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tty_wait_until_sent_from_close(tty,
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msecs_to_jiffies(port->closing_wait));
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/*
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* At this point, we stop accepting input. To do this, we
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