diff options
Diffstat (limited to 'drivers/char/virtio_console.c')
| -rw-r--r-- | drivers/char/virtio_console.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index f404ccfc9c2..026ea6c27e0 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -25,6 +25,7 @@ #include <linux/list.h> #include <linux/poll.h> #include <linux/sched.h> +#include <linux/slab.h> #include <linux/spinlock.h> #include <linux/virtio.h> #include <linux/virtio_console.h> @@ -681,6 +682,10 @@ static void resize_console(struct port *port) struct virtio_device *vdev; struct winsize ws; + /* The port could have been hot-unplugged */ + if (!port) + return; + vdev = port->portdev->vdev; if (virtio_has_feature(vdev, VIRTIO_CONSOLE_F_SIZE)) { vdev->config->get(vdev, @@ -947,11 +952,18 @@ static void handle_control_message(struct ports_device *portdev, */ err = sysfs_create_group(&port->dev->kobj, &port_attribute_group); - if (err) + if (err) { dev_err(port->dev, "Error %d creating sysfs device attributes\n", err); - + } else { + /* + * Generate a udev event so that appropriate + * symlinks can be created based on udev + * rules. + */ + kobject_uevent(&port->dev->kobj, KOBJ_CHANGE); + } break; case VIRTIO_CONSOLE_PORT_REMOVE: /* |