From: Benjamin Berg <[email protected]>
Triggering a bus rescan will not cause the PCI device to be removed. It
is required to explicitly stop and remove the device from the bus.
Change-Id: Ie51a08cde45e829fd68fe7d7ebaa0bd9e1c06c6e
Fixes: 68f5d3f3b654 ("um: add PCI over virtio emulation driver")
Signed-off-by: Benjamin Berg <[email protected]>
---
arch/um/drivers/virt-pci.c | 21 ++++++++++++++++-----
1 file changed, 16 insertions(+), 5 deletions(-)
diff --git a/arch/um/drivers/virt-pci.c b/arch/um/drivers/virt-pci.c
index 3b637ad75ec8..5472b1a0a039 100644
--- a/arch/um/drivers/virt-pci.c
+++ b/arch/um/drivers/virt-pci.c
@@ -626,22 +626,33 @@ static void um_pci_virtio_remove(struct virtio_device
*vdev)
struct um_pci_device *dev = vdev->priv;
int i;
- /* Stop all virtqueues */
- virtio_reset_device(vdev);
- vdev->config->del_vqs(vdev);
-
device_set_wakeup_enable(&vdev->dev, false);
mutex_lock(&um_pci_mtx);
for (i = 0; i < MAX_DEVICES; i++) {
if (um_pci_devices[i].dev != dev)
continue;
+
um_pci_devices[i].dev = NULL;
irq_free_desc(dev->irq);
+
+ break;
}
mutex_unlock(&um_pci_mtx);
- um_pci_rescan();
+ if (i < MAX_DEVICES) {
+ struct pci_dev *pci_dev;
+
+ pci_dev = pci_get_slot(bridge->bus, i);
+ if (pci_dev)
+ pci_stop_and_remove_bus_device_locked(pci_dev);
+ }
+
+ /* Stop all virtqueues */
+ virtio_reset_device(vdev);
+ dev->cmd_vq = NULL;
+ dev->irq_vq = NULL;
+ vdev->config->del_vqs(vdev);
kfree(dev);
}
--
2.39.1
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