From 21816364715f508c10da1e087e352bc1e326614f Mon Sep 17 00:00:00 2001
From: Julia Lawall <Julia.Lawall@lip6.fr>
Date: Wed, 23 May 2018 21:07:12 +0200
Subject: [PATCH] pinctrl: at91-pio4: add missing of_node_put
Git-commit: 21816364715f508c10da1e087e352bc1e326614f
Patch-mainline: v4.18-rc1
References: bsc#1051510
The device node iterators perform an of_node_get on each iteration, so a
jump out of the loop requires an of_node_put.
The semantic patch that fixes this problem is as follows
(http://coccinelle.lip6.fr):
// <smpl>
@@
expression root,e;
local idexpression child;
iterator name for_each_child_of_node;
@@
for_each_child_of_node(root, child) {
... when != of_node_put(child)
when != e = child
+ of_node_put(child);
? break;
...
}
... when != child
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/pinctrl/pinctrl-at91-pio4.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/pinctrl/pinctrl-at91-pio4.c b/drivers/pinctrl/pinctrl-at91-pio4.c
index 4b57a13758a4..bafb3d40545e 100644
--- a/drivers/pinctrl/pinctrl-at91-pio4.c
+++ b/drivers/pinctrl/pinctrl-at91-pio4.c
@@ -576,8 +576,10 @@ static int atmel_pctl_dt_node_to_map(struct pinctrl_dev *pctldev,
for_each_child_of_node(np_config, np) {
ret = atmel_pctl_dt_subnode_to_map(pctldev, np, map,
&reserved_maps, num_maps);
- if (ret < 0)
+ if (ret < 0) {
+ of_node_put(np);
break;
+ }
}
}
--
2.18.0