diff options
| -rw-r--r-- | drivers/char/virtio_console.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index 2f4f0b23ea0..b70fe96c1cc 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -48,6 +48,9 @@ struct ports_driver_data { /* Used for exporting per-port information to debugfs */ struct dentry *debugfs_dir; + /* List of all the devices we're handling */ + struct list_head portdevs; + /* Number of devices this driver is handling */ unsigned int index; @@ -108,6 +111,9 @@ struct port_buffer { * ports for that device (vdev->priv). */ struct ports_device { + /* Next portdev in the list, head is in the pdrvdata struct */ + struct list_head list; + /* * Workqueue handlers where we process deferred work after * notification @@ -1599,6 +1605,10 @@ static int __devinit virtcons_probe(struct virtio_device *vdev) add_port(portdev, 0); } + spin_lock_irq(&pdrvdata_lock); + list_add_tail(&portdev->list, &pdrvdata.portdevs); + spin_unlock_irq(&pdrvdata_lock); + __send_control_msg(portdev, VIRTIO_CONSOLE_BAD_ID, VIRTIO_CONSOLE_DEVICE_READY, 1); return 0; @@ -1625,6 +1635,10 @@ static void virtcons_remove(struct virtio_device *vdev) portdev = vdev->priv; + spin_lock_irq(&pdrvdata_lock); + list_del(&portdev->list); + spin_unlock_irq(&pdrvdata_lock); + /* Disable interrupts for vqs */ vdev->config->reset(vdev); /* Finish up work that's lined up */ @@ -1691,6 +1705,7 @@ static int __init init(void) PTR_ERR(pdrvdata.debugfs_dir)); } INIT_LIST_HEAD(&pdrvdata.consoles); + INIT_LIST_HEAD(&pdrvdata.portdevs); return register_virtio_driver(&virtio_console); } |