[PATCH 4.9 22/29] ARM: cns3xxx: Fix refcount leak in cns3xxx_init

[Greg Kroah-Hartman]

From: Miaoqian Lin <linmq006@xxxxxxxxx>

commit 1ba904b6b16e08de5aed7c1349838d9cd0d178c5 upstream.

of_find_compatible_node() returns a node pointer with refcount
incremented, we should use of_node_put() on it when done.
Add missing of_node_put() to avoid refcount leak.

Fixes: 415f59142d9d ("ARM: cns3xxx: initial DT support")
Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx>
Acked-by: Krzysztof Halasa <khalasa@xxxxxxx>
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 arch/arm/mach-cns3xxx/core.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/arch/arm/mach-cns3xxx/core.c
+++ b/arch/arm/mach-cns3xxx/core.c
@@ -379,6 +379,7 @@ static void __init cns3xxx_init(void)
 		/* De-Asscer SATA Reset */
 		cns3xxx_pwr_soft_rst(CNS3XXX_PWR_SOFTWARE_RST(SATA));
 	}
+	of_node_put(dn);
 
 	dn = of_find_compatible_node(NULL, NULL, "cavium,cns3420-sdhci");
 	if (of_device_is_available(dn)) {
@@ -392,6 +393,7 @@ static void __init cns3xxx_init(void)
 		cns3xxx_pwr_clk_en(CNS3XXX_PWR_CLK_EN(SDIO));
 		cns3xxx_pwr_soft_rst(CNS3XXX_PWR_SOFTWARE_RST(SDIO));
 	}
+	of_node_put(dn);
 
 	pm_power_off = cns3xxx_power_off;