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

Detected by coccinelle with the following warnings:
./arch/arm/mach-shmobile/pm-rcar-gen2.c:77:2-8: ERROR: missing of_node_put; 
acquired a node pointer with refcount incremented on line 66, but without a 
corresponding object release within this function.
./arch/arm/mach-shmobile/pm-rcar-gen2.c:85:2-8: ERROR: missing of_node_put; 
acquired a node pointer with refcount incremented on line 66, but without a 
corresponding object release within this function.
./arch/arm/mach-shmobile/pm-rcar-gen2.c:90:2-8: ERROR: missing of_node_put; 
acquired a node pointer with refcount incremented on line 66, but without a 
corresponding object release within this function.

Signed-off-by: Wen Yang <wen.yan...@zte.com.cn>
Cc: Simon Horman <ho...@verge.net.au>
Cc: Magnus Damm <magnus.d...@gmail.com>
Cc: Russell King <li...@armlinux.org.uk>
Cc: linux-renesas-...@vger.kernel.org
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
---
 arch/arm/mach-shmobile/pm-rcar-gen2.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-shmobile/pm-rcar-gen2.c 
b/arch/arm/mach-shmobile/pm-rcar-gen2.c
index 8c2a205..e84599d 100644
--- a/arch/arm/mach-shmobile/pm-rcar-gen2.c
+++ b/arch/arm/mach-shmobile/pm-rcar-gen2.c
@@ -72,6 +72,7 @@ void __init rcar_gen2_pm_init(void)
        }
 
        error = of_address_to_resource(np, 0, &res);
+       of_node_put(np);
        if (error) {
                pr_err("Failed to get smp-sram address: %d\n", error);
                return;
-- 
2.9.5

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