Linux Virtualization - Mar 2008 - [PATCH] virtio_pci: unregister virtio device at device remove

Make sure to call unregister_virtio_device() when a virtio device is removed.
Otherwise, virtio_pci.ko cannot be rmmod'd.

This was spotted by Marcelo Tosatti.

Signed-off-by: Anthony Liguori <aliguori at us.ibm.com>

diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c
index 59a8f73..6c8ecde 100644
--- a/drivers/virtio/virtio_pci.c
+++ b/drivers/virtio/virtio_pci.c
@@ -388,6 +388,7 @@ static void __devexit virtio_pci_remove(struct pci_dev
*pci_dev)
 {
 	struct virtio_pci_device *vp_dev = pci_get_drvdata(pci_dev);
 
+	unregister_virtio_device(&vp_dev->vdev);
 	free_irq(pci_dev->irq, vp_dev);
 	pci_set_drvdata(pci_dev, NULL);
 	pci_iounmap(pci_dev, vp_dev->ioaddr);

On Thursday 20 March 2008 12:35:04 Anthony Liguori
wrote:
> Make sure to call unregister_virtio_device() when a virtio device is
> removed. Otherwise, virtio_pci.ko cannot be rmmod'd.
>
> This was spotted by Marcelo Tosatti.
>
> Signed-off-by: Anthony Liguori <aliguori at us.ibm.com>
Thanks, applied.

Rusty.