From: Miaoqian Lin <linmq006@gmail.com>
To: Linus Walleij <linus.walleij@linaro.org>,
linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: linmq006@gmail.com
Subject: [PATCH] pinctrl: nomadik: Fix refcount leak in nmk_pinctrl_dt_subnode_to_map
Date: Tue, 7 Jun 2022 15:16:01 +0400 [thread overview]
Message-ID: <20220607111602.57355-1-linmq006@gmail.com> (raw)
of_parse_phandle() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak."
Fixes: c2f6d059abfc ("pinctrl: nomadik: refactor DT parser to take two paths")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
drivers/pinctrl/nomadik/pinctrl-nomadik.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik.c b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
index 640e50d94f27..f5014d09d81a 100644
--- a/drivers/pinctrl/nomadik/pinctrl-nomadik.c
+++ b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
@@ -1421,8 +1421,10 @@ static int nmk_pinctrl_dt_subnode_to_map(struct pinctrl_dev *pctldev,
has_config = nmk_pinctrl_dt_get_config(np, &configs);
np_config = of_parse_phandle(np, "ste,config", 0);
- if (np_config)
+ if (np_config) {
has_config |= nmk_pinctrl_dt_get_config(np_config, &configs);
+ of_node_put(np_config);
+ }
if (has_config) {
const char *gpio_name;
const char *pin;
--
2.25.1
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next reply other threads:[~2022-06-07 11:17 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-07 11:16 Miaoqian Lin [this message]
2022-06-15 14:04 ` [PATCH] pinctrl: nomadik: Fix refcount leak in nmk_pinctrl_dt_subnode_to_map Linus Walleij
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