diff options
| -rw-r--r-- | drivers/tty/tty_buffer.c | 29 |
1 files changed, 6 insertions, 23 deletions
diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c index fb042b9a8d68..dbe4a718e2dc 100644 --- a/drivers/tty/tty_buffer.c +++ b/drivers/tty/tty_buffer.c @@ -151,28 +151,6 @@ static void tty_buffer_free(struct tty_port *port, struct tty_buffer *b) } /** - * __tty_buffer_flush - flush full tty buffers - * @tty: tty to flush - * - * flush all the buffers containing receive data. Caller must - * hold the buffer lock and must have ensured no parallel flush to - * ldisc is running. - */ - -static void __tty_buffer_flush(struct tty_port *port) -{ - struct tty_bufhead *buf = &port->buf; - struct tty_buffer *next; - - while ((next = buf->head->next) != NULL) { - tty_buffer_free(port, buf->head); - buf->head = next; - } - WARN_ON(buf->head != buf->tail); - buf->head->read = buf->head->commit; -} - -/** * tty_buffer_flush - flush full tty buffers * @tty: tty to flush * @@ -188,11 +166,16 @@ void tty_buffer_flush(struct tty_struct *tty) { struct tty_port *port = tty->port; struct tty_bufhead *buf = &port->buf; + struct tty_buffer *next; buf->flushpending = 1; mutex_lock(&buf->flush_mutex); - __tty_buffer_flush(port); + while ((next = buf->head->next) != NULL) { + tty_buffer_free(port, buf->head); + buf->head = next; + } + buf->head->read = buf->head->commit; buf->flushpending = 0; mutex_unlock(&buf->flush_mutex); } |