From d8ac5bb4ae653e092d7429a7587b73f1662d6ad7 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Mon, 14 Jun 2021 21:22:30 +0200 Subject: [PATCH] thermal/drivers/sprd: Add missing of_node_put for loop iteration 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 Acked-by: Chunyan Zhang Signed-off-by: Daniel Lezcano Link: https://lore.kernel.org/r/20210614192230.19248-2-krzysztof.kozlowski@canonical.com --- drivers/thermal/sprd_thermal.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/drivers/thermal/sprd_thermal.c b/drivers/thermal/sprd_thermal.c index fe06cccf14b3..fff80fc18002 100644 --- a/drivers/thermal/sprd_thermal.c +++ b/drivers/thermal/sprd_thermal.c @@ -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; -- 2.39.5