[PATCH] powerpc: powernv: opal-core: Fix refcount leak bug

[Liang He]

In create_opalcore(), of_find_node_by_name() 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/powerpc/platforms/powernv/opal-core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/platforms/powernv/opal-core.c b/arch/powerpc/platforms/powernv/opal-core.c
index adcb1a1a2bfe..bb7657115f1d 100644
--- a/arch/powerpc/platforms/powernv/opal-core.c
+++ b/arch/powerpc/platforms/powernv/opal-core.c
@@ -348,6 +348,8 @@ static int __init create_opalcore(void)
 	if (!dn || ret)
 		pr_warn("WARNING: Failed to read OPAL base & entry values\n");
 
+	of_node_put(dn);
+
 	/* Use count to keep track of the program headers */
 	count = 0;
 
-- 
2.25.1