3.5.7.17 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Jiang Liu <liuj97@xxxxxxxxx>
commit 343df771e671d821478dd3ef525a0610b808dbf8 upstream.
After calling device_register(&bridge->dev), the bridge is reference-
counted, and it is illegal to call kfree() on it except in the release
function.
[bhelgaas: changelog, use put_device() after device_register() failure]
Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxx>
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
[ luis: backported to 3.5:
- adjusted context
- removed error handling for pcibios_root_bridge_prepare invocation ]
Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
---
drivers/pci/probe.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 9319aa1..96273e3 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1625,8 +1625,10 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus,
bridge->dev.release = pci_release_bus_bridge_dev;
dev_set_name(&bridge->dev, "pci%04x:%02x", pci_domain_nr(b), bus);
error = device_register(&bridge->dev);
- if (error)
- goto bridge_dev_reg_err;
+ if (error) {
+ put_device(&bridge->dev);
+ goto err_out;
+ }
b->bridge = get_device(&bridge->dev);
device_enable_async_suspend(b->bridge);
pci_set_bus_of_node(b);
@@ -1679,8 +1681,6 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus,
class_dev_reg_err:
put_device(&bridge->dev);
device_unregister(&bridge->dev);
-bridge_dev_reg_err:
- kfree(bridge);
err_out:
kfree(b);
return NULL;
--
1.8.1.2
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