[PATCH] arm: mach-socfpga: Fix refcount leak bug in socfpga

[Liang He]

In socfpga_sysmgr_init(), of_find_compatible_node() will return a
node pointer with refcount incremented. We should use of_node_put()
when it is not used anymore.

Signed-off-by: Liang He <windhl at 126.com>
---
 arch/arm/mach-socfpga/socfpga.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/mach-socfpga/socfpga.c b/arch/arm/mach-socfpga/socfpga.c
index 9e4cb2ffd580..c561b3b7a9ee 100644
--- a/arch/arm/mach-socfpga/socfpga.c
+++ b/arch/arm/mach-socfpga/socfpga.c
@@ -36,12 +36,15 @@ static void __init socfpga_sysmgr_init(void)
 	sync_cache_w(&socfpga_cpu1start_addr);
 
 	sys_manager_base_addr = of_iomap(np, 0);
+	of_node_put(np);
 
 	np = of_find_compatible_node(NULL, NULL, "altr,rst-mgr");
 	rst_manager_base_addr = of_iomap(np, 0);
+	of_node_put(np);
 
 	np = of_find_compatible_node(NULL, NULL, "altr,sdr-ctl");
 	sdr_ctl_base_addr = of_iomap(np, 0);
+	of_node_put(np);
 }
 
 static void __init socfpga_init_irq(void)
-- 
2.25.1