From: Wen Yang <wen.yang99@xxxxxxxxxx>
[ Upstream commit 44b9f86cd41db6c522effa5aec251d664a52fbc0 ]
The call to of_find_compatible_node returns a node pointer with refcount
incremented thus it must be explicitly decremented after the last
usage.
Detected by coccinelle with the following warnings:
./drivers/pinctrl/samsung/pinctrl-exynos-arm.c:76:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 66, but without a corresponding object release within this function.
./drivers/pinctrl/samsung/pinctrl-exynos-arm.c:82:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 66, but without a corresponding object release within this function.
Signed-off-by: Wen Yang <wen.yang99@xxxxxxxxxx>
Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: Tomasz Figa <tomasz.figa@xxxxxxxxx>
Cc: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
Cc: Kukjin Kim <kgene@xxxxxxxxxx>
Cc: linux-samsung-soc@xxxxxxxxxxxxxxx
Cc: linux-gpio@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Reviewed-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/pinctrl/samsung/pinctrl-exynos-arm.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/pinctrl/samsung/pinctrl-exynos-arm.c b/drivers/pinctrl/samsung/pinctrl-exynos-arm.c
index afeb4876ffb2c..07eb4f071fa87 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos-arm.c
+++ b/drivers/pinctrl/samsung/pinctrl-exynos-arm.c
@@ -76,6 +76,7 @@ s5pv210_retention_init(struct samsung_pinctrl_drv_data *drvdata,
}
clk_base = of_iomap(np, 0);
+ of_node_put(np);
if (!clk_base) {
pr_err("%s: failed to map clock registers\n", __func__);
return ERR_PTR(-EINVAL);
--
2.20.1
