[patch 06/19] POWERPC: Make sure to of_node_get() the result of pci_device_to_OF_node()

[Greg KH <gregkh@suse.de>]

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-stable review patch.  If anyone has any objections, please let us know.

------------------
From: Michael Ellerman <michael@ellerman.id.au>

patch db220b234da9f183b127b9c3077c253b94756e35 in mainline.

pci_device_to_OF_node() returns the device node attached to a PCI device,
but doesn't actually grab a reference - we need to do it ourselves.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 arch/powerpc/platforms/cell/axon_msi.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/powerpc/platforms/cell/axon_msi.c
+++ b/arch/powerpc/platforms/cell/axon_msi.c
@@ -126,7 +126,7 @@ static struct axon_msic *find_msi_transl
 	const phandle *ph;
 	struct axon_msic *msic = NULL;
 
-	dn = pci_device_to_OF_node(dev);
+	dn = of_node_get(pci_device_to_OF_node(dev));
 	if (!dn) {
 		dev_dbg(&dev->dev, "axon_msi: no pci_dn found\n");
 		return NULL;
@@ -183,7 +183,7 @@ static int setup_msi_msg_address(struct 
 	int len;
 	const u32 *prop;
 
-	dn = pci_device_to_OF_node(dev);
+	dn = of_node_get(pci_device_to_OF_node(dev));
 	if (!dn) {
 		dev_dbg(&dev->dev, "axon_msi: no pci_dn found\n");
 		return -ENODEV;

--