From: =?UTF-8?q?Niklas=20S=C3=B6derlund?=
Date: Tue, 22 Aug 2017 02:19:12 +0200
 <niklas.soderlund+renesas@ragnatech.se>
Subject: device property: preserve usecount for node passed to
 of_fwnode_graph_get_port_parent()
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Patch-mainline: v4.14-rc5
Git-commit: 3314c6bdd26880e0dfbcb0cb85a1b36d185ce47c
References: bsc#1098633

Using CONFIG_OF_DYNAMIC=y uncovered an imbalance in the usecount of the
node being passed to of_fwnode_graph_get_port_parent(). Preserve the
usecount by using of_get_parent() instead of of_get_next_parent() which
don't decrement the usecount of the node passed to it.

Fixes: 3b27d00e7b6d7c88 ("device property: Move fwnode graph ops to firmware specific locations")
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/of/property.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -869,7 +869,7 @@ of_fwnode_graph_get_port_parent(struct f
 	struct device_node *np;
 
 	/* Get the parent of the port */
-	np = of_get_next_parent(to_of_node(fwnode));
+	np = of_get_parent(to_of_node(fwnode));
 	if (!np)
 		return NULL;