tty: remove sleep_on
Use wait_event instead of sleep_on in tty_block_til_ready. Wait for ASYNC_CLOSING flag being 0. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -198,7 +198,8 @@ int tty_port_block_til_ready(struct tty_port *port,
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/* block if port is in the process of being closed */
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if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) {
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interruptible_sleep_on(&port->close_wait);
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wait_event_interruptible(port->close_wait,
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!(port->flags & ASYNC_CLOSING));
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if (port->flags & ASYNC_HUP_NOTIFY)
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return -EAGAIN;
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else
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