From dcef18c8ac40aa85bb339f64c1dd31dd458b06fb Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Mon, 2 Jan 2023 12:24:56 +0400
Subject: [PATCH] pinctrl: stm32: Fix refcount leak in stm32_pctrl_get_irq_domain
Git-commit: dcef18c8ac40aa85bb339f64c1dd31dd458b06fb
Patch-mainline: v6.3-rc1
References: git-fixes
of_irq_find_parent() returns a node pointer with refcount incremented,
We should use of_node_put() on it when not needed anymore.
Add missing of_node_put() to avoid refcount leak.
Fixes: d86f4d71e42a ("pinctrl: stm32: check irq controller availability at probe")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20230102082503.3944927-1-linmq006@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/pinctrl/stm32/pinctrl-stm32.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c
index 1cddca506ad7..cb33a23ab0c1 100644
--- a/drivers/pinctrl/stm32/pinctrl-stm32.c
+++ b/drivers/pinctrl/stm32/pinctrl-stm32.c
@@ -1382,6 +1382,7 @@ static struct irq_domain *stm32_pctrl_get_irq_domain(struct platform_device *pde
return ERR_PTR(-ENXIO);
domain = irq_find_host(parent);
+ of_node_put(parent);
if (!domain)
/* domain not registered yet */
return ERR_PTR(-EPROBE_DEFER);
--
2.35.3