linux-kernel - [PATCH 2/3] leds: leds-mc13783: Use of_get_child_by

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Date:	Wed, 14 Jan 2015 14:51:58 +0100
From:	Geert Uytterhoeven <geert+renesas@...der.be>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Bryan Wu <cooloney@...il.com>,
	Richard Purdie <rpurdie@...ys.net>,
	Jingoo Han <jg1.han@...sung.com>,
	Lee Jones <lee.jones@...aro.org>
Cc:	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	linux-leds@...r.kernel.org
Subject: [PATCH 2/3] leds: leds-mc13783: Use of_get_child_by_name() instead of refcount hack

of_find_node_by_name() calls of_node_put() on its "from" parameter.
To counter this, mc13xxx_led_probe_dt() calls of_node_get() first.

Use of_get_child_by_name() instead to get rid of the refcount hack.

Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
Cc: linux-leds@...r.kernel.org
---
Compile-tested only
---
 drivers/leds/leds-mc13783.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/leds/leds-mc13783.c b/drivers/leds/leds-mc13783.c
index 85c3714e1b5aabba..e2b847fe22a1c934 100644
--- a/drivers/leds/leds-mc13783.c
+++ b/drivers/leds/leds-mc13783.c
@@ -134,9 +134,7 @@ static struct mc13xxx_leds_platform_data __init *mc13xxx_led_probe_dt(
 	if (!pdata)
 		return ERR_PTR(-ENOMEM);
 
-	of_node_get(dev->parent->of_node);
-
-	parent = of_find_node_by_name(dev->parent->of_node, "leds");
+	parent = of_get_child_by_name(dev->parent->of_node, "leds");
 	if (!parent)
 		goto out_node_put;
 
-- 
1.9.1

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