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authorMark McLoughlin <markmc@redhat.com>2008-12-10 17:45:34 +0000
committerRusty Russell <rusty@rustcorp.com.au>2008-12-30 09:26:10 +1030
commit29f9f12ec737af62835124e4a8bdb9de631f04dd (patch)
tree2323188170fb6462d45f34e4dfd2f34120057a76 /drivers/virtio/virtio_pci.c
parentb194aee95622f649311f8e53418a17e210ff6827 (diff)
virtio: add PCI device release() function
Add a release() function for virtio_pci devices so as to avoid: Device 'virtio0' does not have a release() function, it is broken and must be fixed Move the code to free the resources associated with the device from virtio_pci_remove() into this new function. virtio_pci_remove() now merely unregisters the device which should cause the final ref to be dropped and virtio_pci_release_dev() to be called. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Reported-by: Michael Tokarev <mjt@tls.msk.ru> Cc: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/virtio/virtio_pci.c')
-rw-r--r--drivers/virtio/virtio_pci.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c
index 7462a51e820b..265fdf2d1276 100644
--- a/drivers/virtio/virtio_pci.c
+++ b/drivers/virtio/virtio_pci.c
@@ -307,6 +307,20 @@ static struct virtio_config_ops virtio_pci_config_ops = {
.finalize_features = vp_finalize_features,
};
+static void virtio_pci_release_dev(struct device *_d)
+{
+ struct virtio_device *dev = container_of(_d, struct virtio_device, dev);
+ struct virtio_pci_device *vp_dev = to_vp_device(dev);
+ struct pci_dev *pci_dev = vp_dev->pci_dev;
+
+ free_irq(pci_dev->irq, vp_dev);
+ pci_set_drvdata(pci_dev, NULL);
+ pci_iounmap(pci_dev, vp_dev->ioaddr);
+ pci_release_regions(pci_dev);
+ pci_disable_device(pci_dev);
+ kfree(vp_dev);
+}
+
/* the PCI probing function */
static int __devinit virtio_pci_probe(struct pci_dev *pci_dev,
const struct pci_device_id *id)
@@ -330,6 +344,7 @@ static int __devinit virtio_pci_probe(struct pci_dev *pci_dev,
return -ENOMEM;
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;
INIT_LIST_HEAD(&vp_dev->virtqueues);
@@ -389,12 +404,6 @@ 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);
- pci_release_regions(pci_dev);
- pci_disable_device(pci_dev);
- kfree(vp_dev);
}
#ifdef CONFIG_PM