diff options
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/virtio_console.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index 3572c5a92e8e..d5e2c7050291 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -1661,7 +1661,9 @@ static void handle_control_message(struct ports_device *portdev, * If the guest is connected, it'll be interested in * knowing the host connection state changed. */ + spin_lock_irq(&port->inbuf_lock); send_sigio_to_port(port); + spin_unlock_irq(&port->inbuf_lock); break; case VIRTIO_CONSOLE_PORT_NAME: /* @@ -1781,13 +1783,13 @@ static void in_intr(struct virtqueue *vq) if (!port->guest_connected && !is_rproc_serial(port->portdev->vdev)) discard_port_data(port); + /* Send a SIGIO indicating new data in case the process asked for it */ + send_sigio_to_port(port); + spin_unlock_irqrestore(&port->inbuf_lock, flags); wake_up_interruptible(&port->waitqueue); - /* Send a SIGIO indicating new data in case the process asked for it */ - send_sigio_to_port(port); - if (is_console_port(port) && hvc_poll(port->cons.hvc)) hvc_kick(); } |