If the pci device is disconnected, return false immediately for checking
presence. We can't use the early return in pci device config accessors
since this function uses the bus accessors.
Signed-off-by: Keith Busch <keith.busch@xxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
---
drivers/pci/pci.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index a881c0d..b8d37e7 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -4932,6 +4932,8 @@ bool pci_device_is_present(struct pci_dev *pdev)
{
u32 v;
+ if (pci_dev_is_disconnected(pdev))
+ return false;
return pci_bus_read_dev_vendor_id(pdev->bus, pdev->devfn, &v, 0);
}
EXPORT_SYMBOL_GPL(pci_device_is_present);
--
2.7.2
