From 8a065ce92b218e453742b745162d75a6f86fb768 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Tue, 20 Apr 2021 21:31:51 +0200
Subject: [PATCH] regulator: Avoid a double 'of_node_get' in 'regulator_of_get_init_node()'
Git-commit: 8a065ce92b218e453742b745162d75a6f86fb768
Patch-mainline: v5.13-rc1
References: git-fixes
'for_each_available_child_of_node()' already performs an 'of_node_get()'
on child, so there is no need to perform another one before returning.
Otherwise, a double 'get' is performed and a resource may never be
released.
Fixes: 925c85e21ed8 ("regulator: Factor out location of init data OF node")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/a79f0068812b89ff412d572a1171f22109c24132.1618947049.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/regulator/of_regulator.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c
index 564f928eb1db..49f6c05fee34 100644
--- a/drivers/regulator/of_regulator.c
+++ b/drivers/regulator/of_regulator.c
@@ -422,7 +422,11 @@ device_node *regulator_of_get_init_node(struct device *dev,
if (!strcmp(desc->of_match, name)) {
of_node_put(search);
- return of_node_get(child);
+ /*
+ * 'of_node_get(child)' is already performed by the
+ * for_each loop.
+ */
+ return child;
}
}
--
2.26.2