From: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
[ Upstream commit 3da97620e8d60da4a7eaae46e03e0a494780642d ]
Early exits from for_each_available_child_of_node() should decrement the
node reference counter. Reported by Coccinelle:
drivers/thermal/imx_sc_thermal.c:93:1-33: WARNING:
Function "for_each_available_child_of_node" should have of_node_put() before return around line 97.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
Reviewed-by: Jacky Bai <ping.bai@xxxxxxx>
Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20210614192230.19248-1-krzysztof.kozlowski@xxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/thermal/imx_sc_thermal.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/thermal/imx_sc_thermal.c b/drivers/thermal/imx_sc_thermal.c
index b01d28eca7ee..8d76dbfde6a9 100644
--- a/drivers/thermal/imx_sc_thermal.c
+++ b/drivers/thermal/imx_sc_thermal.c
@@ -93,6 +93,7 @@ static int imx_sc_thermal_probe(struct platform_device *pdev)
for_each_available_child_of_node(np, child) {
sensor = devm_kzalloc(&pdev->dev, sizeof(*sensor), GFP_KERNEL);
if (!sensor) {
+ of_node_put(child);
of_node_put(sensor_np);
return -ENOMEM;
}
@@ -104,6 +105,7 @@ static int imx_sc_thermal_probe(struct platform_device *pdev)
dev_err(&pdev->dev,
"failed to get valid sensor resource id: %d\n",
ret);
+ of_node_put(child);
break;
}
@@ -114,6 +116,7 @@ static int imx_sc_thermal_probe(struct platform_device *pdev)
if (IS_ERR(sensor->tzd)) {
dev_err(&pdev->dev, "failed to register thermal zone\n");
ret = PTR_ERR(sensor->tzd);
+ of_node_put(child);
break;
}
--
2.30.2
