[PATCH 2/5] reset: k210: fix OF node leak in probe() error path

[Krzysztof Kozlowski]

Driver is leaking OF node reference on memory allocation failure.
Acquire the OF node reference after memory allocation to fix this and
keep it simple.

Fixes: 5a2308da9f60 ("riscv: Add Canaan Kendryte K210 reset controller")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>
---
 drivers/reset/reset-k210.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/reset/reset-k210.c b/drivers/reset/reset-k210.c
index b62a2fd44e4e..e77e4cca377d 100644
--- a/drivers/reset/reset-k210.c
+++ b/drivers/reset/reset-k210.c
@@ -90,7 +90,7 @@ static const struct reset_control_ops k210_rst_ops = {
 static int k210_rst_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	struct device_node *parent_np = of_get_parent(dev->of_node);
+	struct device_node *parent_np;
 	struct k210_rst *ksr;
 
 	dev_info(dev, "K210 reset controller\n");
@@ -99,6 +99,7 @@ static int k210_rst_probe(struct platform_device *pdev)
 	if (!ksr)
 		return -ENOMEM;
 
+	parent_np = of_get_parent(dev->of_node);
 	ksr->map = syscon_node_to_regmap(parent_np);
 	of_node_put(parent_np);
 	if (IS_ERR(ksr->map))

-- 
2.43.0