diff options
Diffstat (limited to 'drivers/char/virtio_console.c')
| -rw-r--r-- | drivers/char/virtio_console.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index d433b1db1fdd..5649234b7316 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -1539,19 +1539,29 @@ static void remove_port_data(struct port *port) spin_lock_irq(&port->inbuf_lock); /* Remove unused data this port might have received. */ discard_port_data(port); + spin_unlock_irq(&port->inbuf_lock); /* Remove buffers we queued up for the Host to send us data in. */ - while ((buf = virtqueue_detach_unused_buf(port->in_vq))) - free_buf(buf, true); - spin_unlock_irq(&port->inbuf_lock); + do { + spin_lock_irq(&port->inbuf_lock); + buf = virtqueue_detach_unused_buf(port->in_vq); + spin_unlock_irq(&port->inbuf_lock); + if (buf) + free_buf(buf, true); + } while (buf); spin_lock_irq(&port->outvq_lock); reclaim_consumed_buffers(port); + spin_unlock_irq(&port->outvq_lock); /* Free pending buffers from the out-queue. */ - while ((buf = virtqueue_detach_unused_buf(port->out_vq))) - free_buf(buf, true); - spin_unlock_irq(&port->outvq_lock); + do { + spin_lock_irq(&port->outvq_lock); + buf = virtqueue_detach_unused_buf(port->out_vq); + spin_unlock_irq(&port->outvq_lock); + if (buf) + free_buf(buf, true); + } while (buf); } /* |