[PATCH 4.14 20/35] xtensa: xtfpga: Fix refcount leak bug in setup

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From: Liang He <windhl@xxxxxxx>

commit 173940b3ae40114d4179c251a98ee039dc9cd5b3 upstream.

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

Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Liang He <windhl@xxxxxxx>
Message-Id: <20220617115323.4046905-1-windhl@xxxxxxx>
Signed-off-by: Max Filippov <jcmvbkbc@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 arch/xtensa/platforms/xtfpga/setup.c |    1 +
 1 file changed, 1 insertion(+)

--- a/arch/xtensa/platforms/xtfpga/setup.c
+++ b/arch/xtensa/platforms/xtfpga/setup.c
@@ -152,6 +152,7 @@ static int __init machine_setup(void)
 
 	if ((eth = of_find_compatible_node(eth, NULL, "opencores,ethoc")))
 		update_local_mac(eth);
+	of_node_put(eth);
 	return 0;
 }
 arch_initcall(machine_setup);





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