which are quite a few. It should be evident that dealing with that
many options is a bit complex.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.w...@oracle.com>
---
drivers/xen/xen-pciback/pci_stub.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/xen/xen-pciback/pci_stub.c
b/drivers/xen/xen-pciback/pci_stub.c
index 1539bec..d57a173 100644
--- a/drivers/xen/xen-pciback/pci_stub.c
+++ b/drivers/xen/xen-pciback/pci_stub.c
@@ -242,6 +242,15 @@ struct pci_dev *pcistub_get_pci_dev(struct
xen_pcibk_device *pdev,
return found_dev;
}
+/*
+ * Called when:
+ * - XenBus state has been reconfigure (pci unplug). See
xen_pcibk_remove_device
+ * - XenBus state has been disconnected (guest shutdown). See
xen_pcibk_xenbus_remove
+ * - 'echo BDF > unbind' on pciback module with no guest attached. See
pcistub_remove
+ * - 'echo BDF > unbind' with a guest still using it. See pcistub_remove
+ *
+ * As such we have to be careful.
+ */
void pcistub_put_pci_dev(struct pci_dev *dev)
{
struct pcistub_device *psdev, *found_psdev = NULL;
--
1.8.5.3
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