[PATCH] ARM: imx35: Fix refcount leak in mx35_read_cpu_rev

[Miaoqian Lin]

The of_find_compatible_node() function returns a node pointer with
refcount incremented, We should use of_node_put() on it when done
Add the missing of_node_put() to release the refcount.

Fixes: f68ea682d1da ("ARM: imx35: Retrieve the IIM base address from devicetree")
Signed-off-by: Miaoqian Lin <linmq006 at gmail.com>
---
 arch/arm/mach-imx/cpu-imx35.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-imx/cpu-imx35.c b/arch/arm/mach-imx/cpu-imx35.c
index 80e7d8ab9f1b..3ae4a3dc44fb 100644
--- a/arch/arm/mach-imx/cpu-imx35.c
+++ b/arch/arm/mach-imx/cpu-imx35.c
@@ -22,6 +22,7 @@ static int mx35_read_cpu_rev(void)
 	np = of_find_compatible_node(NULL, NULL, "fsl,imx35-iim");
 	iim_base = of_iomap(np, 0);
 	BUG_ON(!iim_base);
+	of_node_put(np);
 
 	rev = imx_readl(iim_base + MXC_IIMSREV);
 	switch (rev) {
-- 
2.17.1