diff options
| -rw-r--r-- | drivers/tty/n_tty.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index d15624c1b75..e36d1f5ca19 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -2356,8 +2356,12 @@ static ssize_t n_tty_write(struct tty_struct *tty, struct file *file, if (tty->ops->flush_chars) tty->ops->flush_chars(tty); } else { + struct n_tty_data *ldata = tty->disc_data; + while (nr > 0) { + mutex_lock(&ldata->output_lock); c = tty->ops->write(tty, b, nr); + mutex_unlock(&ldata->output_lock); if (c < 0) { retval = c; goto break_out; |