diff options
Diffstat (limited to 'drivers/char/virtio_console.c')
| -rw-r--r-- | drivers/char/virtio_console.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index 8c99bf1b5e9..942a9826bd2 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -529,6 +529,10 @@ static bool will_write_block(struct port *port) { bool ret; + if (!port->guest_connected) { + /* Port got hot-unplugged. Let's exit. */ + return false; + } if (!port->host_connected) return true; @@ -1099,6 +1103,13 @@ static int remove_port(struct port *port) { struct port_buffer *buf; + if (port->guest_connected) { + port->guest_connected = false; + port->host_connected = false; + wake_up_interruptible(&port->waitqueue); + send_control_msg(port, VIRTIO_CONSOLE_PORT_OPEN, 0); + } + spin_lock_irq(&port->portdev->ports_lock); list_del(&port->list); spin_unlock_irq(&port->portdev->ports_lock); @@ -1120,9 +1131,6 @@ static int remove_port(struct port *port) hvc_remove(port->cons.hvc); #endif } - if (port->guest_connected) - send_control_msg(port, VIRTIO_CONSOLE_PORT_OPEN, 0); - sysfs_remove_group(&port->dev->kobj, &port_attribute_group); device_destroy(pdrvdata.class, port->dev->devt); cdev_del(&port->cdev); |