virtio: do not statically allocate root device
We shouldn't be statically allocating the root device object,
so dynamically allocate it using root_device_register()
instead.
Also avoids this warning from 'rmmod virtio_pci':
Device 'virtio-pci' does not have a release() function, it is broken and must be fixed
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c
index 265fdf2..bef6b45 100644
--- a/drivers/virtio/virtio_pci.c
+++ b/drivers/virtio/virtio_pci.c
@@ -73,10 +73,7 @@
/* A PCI device has it's own struct device and so does a virtio device so
* we create a place for the virtio devices to show up in sysfs. I think it
* would make more sense for virtio to not insist on having it's own device. */
-static struct device virtio_pci_root = {
- .parent = NULL,
- .init_name = "virtio-pci",
-};
+static struct device *virtio_pci_root;
/* Convert a generic virtio device to our structure */
static struct virtio_pci_device *to_vp_device(struct virtio_device *vdev)
@@ -343,7 +340,7 @@
if (vp_dev == NULL)
return -ENOMEM;
- vp_dev->vdev.dev.parent = &virtio_pci_root;
+ vp_dev->vdev.dev.parent = virtio_pci_root;
vp_dev->vdev.dev.release = virtio_pci_release_dev;
vp_dev->vdev.config = &virtio_pci_config_ops;
vp_dev->pci_dev = pci_dev;
@@ -437,13 +434,13 @@
{
int err;
- err = device_register(&virtio_pci_root);
- if (err)
- return err;
+ virtio_pci_root = root_device_register("virtio-pci");
+ if (IS_ERR(virtio_pci_root))
+ return PTR_ERR(virtio_pci_root);
err = pci_register_driver(&virtio_pci_driver);
if (err)
- device_unregister(&virtio_pci_root);
+ device_unregister(virtio_pci_root);
return err;
}
@@ -452,8 +449,8 @@
static void __exit virtio_pci_exit(void)
{
- device_unregister(&virtio_pci_root);
pci_unregister_driver(&virtio_pci_driver);
+ root_device_unregister(virtio_pci_root);
}
module_exit(virtio_pci_exit);