[PATCH resend] PCI: check if a bus is added when removing it

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



When removing a bus, 'is_added' should be checked to make sure the
bus has been successfully added by pci_bus_add_child() who will sets
'is_added'.

Signed-off-by: Yu Zhao <yu.zhao@xxxxxxxxx>
---
 drivers/pci/remove.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c
index 042e089..caf8e1e 100644
--- a/drivers/pci/remove.c
+++ b/drivers/pci/remove.c
@@ -71,6 +71,9 @@ void pci_remove_bus(struct pci_bus *pci_bus)
 	down_write(&pci_bus_sem);
 	list_del(&pci_bus->node);
 	up_write(&pci_bus_sem);
+	if (!pci_bus->is_added)
+		return;
+
 	pci_remove_legacy_files(pci_bus);
 	device_remove_file(&pci_bus->dev, &dev_attr_cpuaffinity);
 	device_remove_file(&pci_bus->dev, &dev_attr_cpulistaffinity);
-- 
1.6.1

--
To unsubscribe from this list: send the line "unsubscribe linux-pci" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [DMA Engine]     [Linux Coverity]     [Linux USB]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Greybus]

  Powered by Linux