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n_tty: Unthrottle tty when flushing read buffer 

When the tty input buffer is full and thereby throttled,
flushing/resetting the read buffer should unthrottle to allow more
data to be received.

Signed-off-by: Karthik Manamcheri <Karthik.Manamcheri@ni.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Karthik Manamcheri 2013-01-23 16:36:18 -06:00 committed by Greg Kroah-Hartman
parent ebcf09816c
commit 58f82be334
1 changed files with 2 additions and 0 deletions
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2
drivers/tty/n_tty.c
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@ -229,6 +229,8 @@ static void reset_buffer_flags(struct tty_struct *tty)
ldata->canon_head = ldata->canon_data = ldata->erasing = 0;
bitmap_zero(ldata->read_flags, N_TTY_BUF_SIZE);
n_tty_set_room(tty);
check_unthrottle(tty);
}
/**