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

------------------

From: Boris Brezillon <[email protected]>

commit 277867ade8262583f4280cadbe90e0031a3706a7 upstream.

of_find_compatible_node() is calling of_node_put() on its first argument
thus leading to an unbalanced of_node_get/put() issue if the node has not
been retained before that.

Instead of passing the root node, pass NULL, which does exactly the same:
iterate over all DT nodes, starting from the root node.

Signed-off-by: Boris Brezillon <[email protected]>
Reported-by: Alexandre Belloni <[email protected]>
Fixes: 3d61467f9bab ("irqchip: atmel-aic: Implement RTC irq fixup")
Signed-off-by: Marc Zyngier <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 drivers/irqchip/irq-atmel-aic-common.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/irqchip/irq-atmel-aic-common.c
+++ b/drivers/irqchip/irq-atmel-aic-common.c
@@ -148,9 +148,9 @@ void __init aic_common_rtc_irq_fixup(str
        struct device_node *np;
        void __iomem *regs;
 
-       np = of_find_compatible_node(root, NULL, "atmel,at91rm9200-rtc");
+       np = of_find_compatible_node(NULL, NULL, "atmel,at91rm9200-rtc");
        if (!np)
-               np = of_find_compatible_node(root, NULL,
+               np = of_find_compatible_node(NULL, NULL,
                                             "atmel,at91sam9x5-rtc");
 
        if (!np)


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