[PATCH 8/8] PCI: rpadlpar: fix a leaked reference by adding missing of_node_put

[Wen Yang]

The call to of_find_node_by_name returns a node pointer with refcount
incremented thus it must be explicitly decremented after the last
usage.

Detected by coccinelle with the following warnings:
./drivers/pci/hotplug/rpadlpar_core.c:55:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 42, but without a corresponding object release within this function

Signed-off-by: Wen Yang <wen.yang99@xxxxxxxxxx>
Cc: Tyrel Datwyler <tyreld@xxxxxxxxxxxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Cc: linux-pci@xxxxxxxxxxxxxxx
Cc: linuxppc-dev@xxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
---
 drivers/pci/hotplug/rpadlpar_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/hotplug/rpadlpar_core.c b/drivers/pci/hotplug/rpadlpar_core.c
index e2356a9..f3f42ff 100644
--- a/drivers/pci/hotplug/rpadlpar_core.c
+++ b/drivers/pci/hotplug/rpadlpar_core.c
@@ -52,6 +52,7 @@ static struct device_node *find_vio_slot_node(char *drc_name)
 			break;
 	}
 
+	of_node_put(parent);
 	return dn;
 }
 
-- 
2.9.5