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pinctrl: stm32: Fix refcount leak in stm32_pctrl_get_irq_domain

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[ Upstream commit dcef18c8ac40aa85bb339f64c1dd31dd458b06fb ]

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: d86f4d71e4 ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Miaoqian Lin 2023-01-02 12:24:56 +04:00 committed by Greg Kroah-Hartman
parent fc34608fa2
commit 95ab6d7905
1 changed files with 1 additions and 0 deletions
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drivers/pinctrl/stm32/pinctrl-stm32.c
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@ -1250,6 +1250,7 @@ static struct irq_domain *stm32_pctrl_get_irq_domain(struct device_node *np)
return ERR_PTR(-ENXIO); return ERR_PTR(-ENXIO);
domain = irq_find_host(parent); domain = irq_find_host(parent);
of_node_put(parent);
if (!domain) if (!domain)
/* domain not registered yet */ /* domain not registered yet */
return ERR_PTR(-EPROBE_DEFER); return ERR_PTR(-EPROBE_DEFER);