diff options
Diffstat (limited to 'drivers/tty/tty_buffer.c')
| -rw-r--r-- | drivers/tty/tty_buffer.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c index 414bb7f9155f..44c0adaec850 100644 --- a/drivers/tty/tty_buffer.c +++ b/drivers/tty/tty_buffer.c @@ -262,17 +262,10 @@ static int __tty_buffer_request_room(struct tty_port *port, size_t size, bool flags) { struct tty_bufhead *buf = &port->buf; - struct tty_buffer *b, *n; - size_t left; - bool change; + struct tty_buffer *n, *b = buf->tail; + size_t left = (b->flags ? 1 : 2) * b->size - b->used; + bool change = !b->flags && flags; - b = buf->tail; - if (!b->flags) - left = 2 * b->size - b->used; - else - left = b->size - b->used; - - change = !b->flags && flags; if (change || left < size) { /* This is the slow path - looking for new buffers to use */ n = tty_buffer_alloc(port, size); |