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

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

From: Nicholas Mc Guire <[email protected]>

[ Upstream commit 28ec2238f37e72a3a40a7eb46893e7651bcc40a6 ]

of_find_compatible_node() returns a device_node pointer with refcount
incremented and must be decremented explicitly.
 As this code is using the result only to check presence of the interrupt
controller (!NULL) but not actually using the result otherwise the
refcount can be decremented here immediately again.

Signed-off-by: Nicholas Mc Guire <[email protected]>
Signed-off-by: Paul Burton <[email protected]>
Patchwork: https://patchwork.linux-mips.org/patch/19820/
Cc: Ralf Baechle <[email protected]>
Cc: James Hogan <[email protected]>
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Sasha Levin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
 arch/mips/generic/init.c |    1 +
 1 file changed, 1 insertion(+)

--- a/arch/mips/generic/init.c
+++ b/arch/mips/generic/init.c
@@ -159,6 +159,7 @@ void __init arch_init_irq(void)
                                            "mti,cpu-interrupt-controller");
        if (!cpu_has_veic && !intc_node)
                mips_cpu_irq_init();
+       of_node_put(intc_node);
 
        irqchip_init();
 }


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