From: Krzysztof Kozlowski krzysztof.kozlowski@canonical.com
stable inclusion from stable-5.10.53 commit 20babcd830922e3aa233c95515cd2052bd6da71f bugzilla: 175574 https://gitee.com/openeuler/kernel/issues/I4DTUX
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ 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@canonical.com Reviewed-by: Jacky Bai ping.bai@nxp.com Signed-off-by: Daniel Lezcano daniel.lezcano@linaro.org Link: https://lore.kernel.org/r/20210614192230.19248-1-krzysztof.kozlowski@canonic... Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Chen Jun chenjun102@huawei.com Acked-by: Weilong Chen chenweilong@huawei.com Signed-off-by: Chen Jun chenjun102@huawei.com --- 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; }