[PATCH 1/2] cpuidle: qcom-spm: fix device node release in spm_cpuidle_register

[Javier Carrasco]

If of_find_device_by_node() fails, its error path does not include a
call to of_node_put(cpu_node), which has been successfully acquired at
this point.

Move the existing of_node_put(cpu_node) to the point where cpu_node is
no longer required, covering all code paths and avoiding leaking the
resource in any case.

Cc: stable@xxxxxxxxxxxxxxx
Fixes: 60f3692b5f0b ("cpuidle: qcom_spm: Detach state machine from main SPM handling")
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@xxxxxxxxx>
---
 drivers/cpuidle/cpuidle-qcom-spm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cpuidle/cpuidle-qcom-spm.c b/drivers/cpuidle/cpuidle-qcom-spm.c
index 3ab240e0e122..c9ab49b310fd 100644
--- a/drivers/cpuidle/cpuidle-qcom-spm.c
+++ b/drivers/cpuidle/cpuidle-qcom-spm.c
@@ -96,12 +96,12 @@ static int spm_cpuidle_register(struct device *cpuidle_dev, int cpu)
 		return -ENODEV;
 
 	saw_node = of_parse_phandle(cpu_node, "qcom,saw", 0);
+	of_node_put(cpu_node);
 	if (!saw_node)
 		return -ENODEV;
 
 	pdev = of_find_device_by_node(saw_node);
 	of_node_put(saw_node);
-	of_node_put(cpu_node);
 	if (!pdev)
 		return -ENODEV;
 

-- 
2.43.0