[PATCH] cpuidle: qcom-spm: add missing put_device() call in spm_cpuidle_register()

[Qing Wang]

From: Wang Qing <wangqing@xxxxxxxx>

of_find_device_by_node() takes a reference to the embedded struct device 
which needs to be dropped when error return.

Signed-off-by: Wang Qing <wangqing@xxxxxxxx>
---
 drivers/cpuidle/cpuidle-qcom-spm.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/cpuidle/cpuidle-qcom-spm.c b/drivers/cpuidle/cpuidle-qcom-spm.c
index 01e7791..6638c1d
--- a/drivers/cpuidle/cpuidle-qcom-spm.c
+++ b/drivers/cpuidle/cpuidle-qcom-spm.c
@@ -107,12 +107,16 @@ static int spm_cpuidle_register(struct device *cpuidle_dev, int cpu)
 		return -ENODEV;
 
 	data = devm_kzalloc(cpuidle_dev, sizeof(*data), GFP_KERNEL);
-	if (!data)
+	if (!data) {
+		put_device(&pdev->dev);
 		return -ENOMEM;
+	}
 
 	data->spm = dev_get_drvdata(&pdev->dev);
-	if (!data->spm)
+	if (!data->spm) {
+		put_device(&pdev->dev);
 		return -EINVAL;
+	}
 
 	data->cpuidle_driver = qcom_spm_idle_driver;
 	data->cpuidle_driver.cpumask = (struct cpumask *)cpumask_of(cpu);
-- 
2.7.4