@@ -388,7 +388,7 @@ static int sprd_thm_probe(struct platform_device *pdev)
sen = devm_kzalloc(&pdev->dev, sizeof(*sen), GFP_KERNEL);
if (!sen) {
ret = -ENOMEM;
- goto disable_clk;
+ goto of_put;
}
sen->data = thm;
@@ -397,13 +397,13 @@ static int sprd_thm_probe(struct platform_device *pdev)
ret = of_property_read_u32(sen_child, "reg", &sen->id);
if (ret) {
dev_err(&pdev->dev, "get sensor reg failed");
- goto disable_clk;
+ goto of_put;
}
ret = sprd_thm_sensor_calibration(sen_child, thm, sen);
if (ret) {
dev_err(&pdev->dev, "efuse cal analysis failed");
- goto disable_clk;
+ goto of_put;
}
sprd_thm_sensor_init(thm, sen);
@@ -416,19 +416,20 @@ static int sprd_thm_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "register thermal zone failed %d\n",
sen->id);
ret = PTR_ERR(sen->tzd);
- goto disable_clk;
+ goto of_put;
}
thm->sensor[sen->id] = sen;
}
+ /* sen_child set to NULL at this point */
ret = sprd_thm_set_ready(thm);
if (ret)
- goto disable_clk;
+ goto of_put;
ret = sprd_thm_wait_temp_ready(thm);
if (ret)
- goto disable_clk;
+ goto of_put;
for (i = 0; i < thm->nr_sensors; i++)
sprd_thm_toggle_sensor(thm->sensor[i], true);
@@ -436,6 +437,8 @@ static int sprd_thm_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, thm);
return 0;
+of_put:
+ of_node_put(sen_child);
disable_clk:
clk_disable_unprepare(thm->clk);
return ret;
Early exits from for_each_available_child_of_node() should decrement the node reference counter. Reported by Coccinelle: drivers/thermal/sprd_thermal.c:387:1-23: WARNING: Function "for_each_child_of_node" should have of_node_put() before goto around lines 391. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Acked-by: Chunyan Zhang <zhang.lyra@gmail.com> --- Changes since v1: 1. Add of_put label as suggested by Daniel. --- drivers/thermal/sprd_thermal.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-)