[PATCH 5.4 253/475] pinctrl: nomadik: Add missing of_node_put() in nmk_pinctrl_probe

From: Greg Kroah-Hartman
Date: Thu Apr 14 2022 - 10:56:50 EST


From: Miaoqian Lin <linmq006@xxxxxxxxx>

[ Upstream commit c09ac191b1f97cfa06f394dbfd7a5db07986cefc ]

This node pointer is returned by of_parse_phandle() with refcount
incremented in this function. Calling of_node_put() to avoid
the refcount leak.

Fixes: 32e67eee670e ("pinctrl: nomadik: Allow prcm_base to be extracted from Device Tree")
Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx>
Link: https://lore.kernel.org/r/20220307115116.25316-1-linmq006@xxxxxxxxx
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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 2a8190b11d10..9f00adfefba8 100644
--- a/drivers/pinctrl/nomadik/pinctrl-nomadik.c
+++ b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
@@ -1923,8 +1923,10 @@ static int nmk_pinctrl_probe(struct platform_device *pdev)
}

prcm_np = of_parse_phandle(np, "prcm", 0);
- if (prcm_np)
+ if (prcm_np) {
npct->prcm_base = of_iomap(prcm_np, 0);
+ of_node_put(prcm_np);
+ }
if (!npct->prcm_base) {
if (version == PINCTRL_NMK_STN8815) {
dev_info(&pdev->dev,
--
2.34.1