diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index e17ecf5d42b522d2df6bd3dc2e05f52d642d916c..70f1c38fa14cd959efdb534542ea6139b7d8e612 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -626,6 +626,9 @@ static ssize_t port_fops_write(struct file *filp, const char __user *ubuf, if (ret < 0) return ret; } + /* Port got hot-unplugged. */ + if (!port->guest_connected) + return -ENODEV; count = min((size_t)(32 * 1024), count);