3.2-stable review patch. If anyone has any objections, please let me know.
------------------
From: Kenji Kaneshige <kaneshige.ke...@jp.fujitsu.com>
commit 027e8d52abdd44bc00e405af83cd2fbfb96c0824 upstream.
Fix improper workqueue cleanup.
In the current pciehp, pcied_cleanup() calls destroy_workqueue()
before calling pcie_port_service_unregister(). This causes kernel oops
because flush_workqueue() is called in the pcie_port_service_unregister()
code path after the workqueue was destroyed. So pcied_cleanup() must call
pcie_port_service_unregister() first before calling destroy_workqueue().
Signed-off-by: Kenji Kaneshige <kaneshige.ke...@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbar...@virtuousgeek.org>
Signed-off-by: Ben Hutchings <b...@decadent.org.uk>
---
drivers/pci/hotplug/pciehp_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/hotplug/pciehp_core.c
b/drivers/pci/hotplug/pciehp_core.c
index 7ac8358..a13ad13 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -366,9 +366,9 @@ static int __init pcied_init(void)
static void __exit pcied_cleanup(void)
{
dbg("unload_pciehpd()\n");
+ pcie_port_service_unregister(&hpdriver_portdrv);
destroy_workqueue(pciehp_ordered_wq);
destroy_workqueue(pciehp_wq);
- pcie_port_service_unregister(&hpdriver_portdrv);
info(DRIVER_DESC " version: " DRIVER_VERSION " unloaded\n");
}
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