[PATCH v3 08/12] ACPI: acpi_pci_unbind should clean up properly afteracpi_pci_bind

[Alex Chiang]

In acpi_pci_bind, we set device->ops.bind and device->ops.unbind, but
never clear them out.

Cc: Bjorn Helgaas <bjorn.helgaas@xxxxxx>
Signed-off-by: Alex Chiang <achiang@xxxxxx>
---

 drivers/acpi/pci_bind.c |   11 +++++++----
 1 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/pci_bind.c b/drivers/acpi/pci_bind.c
index 62cb383..a205769 100644
--- a/drivers/acpi/pci_bind.c
+++ b/drivers/acpi/pci_bind.c
@@ -109,12 +109,15 @@ static int acpi_pci_unbind(struct acpi_device *device)
 	struct pci_dev *dev;
 
 	dev = acpi_get_pci_dev(device->handle);
-	if (!dev)
-		return 0;
+	if (!dev || !dev->subordinate)
+		goto out;
 
-	if (dev->subordinate)
-		acpi_pci_irq_del_prt(dev->subordinate);
+	acpi_pci_irq_del_prt(dev->subordinate);
+
+	device->ops.bind = NULL;
+	device->ops.unbind = NULL;
 
+out:
 	pci_dev_put(dev);
 	return 0;
 }

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