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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-10 04:42:04 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-10 04:42:04 +0100 |
| commit | 394e849b83463869e2267ea7acea002366e6fefc (patch) | |
| tree | 917ec5c564964d781ffbda2917efdf7cde252c72 /drivers/tty/n_tty.c | |
| parent | serial: pl011: Add device tree support for RX DMA polling (diff) | |
| parent | Linux 3.18-rc4 (diff) | |
| download | linux-394e849b83463869e2267ea7acea002366e6fefc.tar.xz linux-394e849b83463869e2267ea7acea002366e6fefc.zip | |
Merge 3.18-rc4 into tty-next.
This resolves a merge issue with drivers/tty/serial/8250/8250_mtk.c
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/n_tty.c')
| -rw-r--r-- | drivers/tty/n_tty.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index 112eda7c56bc..8358daa865e5 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -2406,12 +2406,17 @@ static unsigned int n_tty_poll(struct tty_struct *tty, struct file *file, poll_wait(file, &tty->read_wait, wait); poll_wait(file, &tty->write_wait, wait); + if (test_bit(TTY_OTHER_CLOSED, &tty->flags)) + mask |= POLLHUP; if (input_available_p(tty, 1)) mask |= POLLIN | POLLRDNORM; + else if (mask & POLLHUP) { + tty_flush_to_ldisc(tty); + if (input_available_p(tty, 1)) + mask |= POLLIN | POLLRDNORM; + } if (tty->packet && tty->link->ctrl_status) mask |= POLLPRI | POLLIN | POLLRDNORM; - if (test_bit(TTY_OTHER_CLOSED, &tty->flags)) - mask |= POLLHUP; if (tty_hung_up_p(file)) mask |= POLLHUP; if (!(mask & (POLLHUP | POLLIN | POLLRDNORM))) { |