diff options
author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-04-18 17:12:14 +0100 |
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committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-04-18 17:12:14 +0100 |
commit | fac56c2df51bc29b07b3c2dcfabf32a015a0522c (patch) | |
tree | 1ff5d84ecf4ea0bcbd42e2ef9624b5ade3810890 /drivers/tty/n_tty.c | |
parent | 6caa15d0b84d2ea688fd31f4f172c8353463e109 (diff) | |
parent | a6360dd37e1a144ed11e6548371bade559a1e4df (diff) |
Merge commit 'v2.6.39-rc3' into for-2.6.39
Diffstat (limited to 'drivers/tty/n_tty.c')
-rw-r--r-- | drivers/tty/n_tty.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index 428f4fe0b5f7..0ad32888091c 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -95,6 +95,7 @@ static void n_tty_set_room(struct tty_struct *tty) { /* tty->read_cnt is not read locked ? */ int left = N_TTY_BUF_SIZE - tty->read_cnt - 1; + int old_left; /* * If we are doing input canonicalization, and there are no @@ -104,7 +105,12 @@ static void n_tty_set_room(struct tty_struct *tty) */ if (left <= 0) left = tty->icanon && !tty->canon_data; + old_left = tty->receive_room; tty->receive_room = left; + + /* Did this open up the receive buffer? We may need to flip */ + if (left && !old_left) + schedule_work(&tty->buf.work); } static void put_tty_queue_nolock(unsigned char c, struct tty_struct *tty) |