linux-kernel - [PATCH 03/10] soc: qcom: pd-mapper: Use __cleanup() for device

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Message-Id: <20251117-cleanup_node_put-v1-3-5f107071d171@oss.qualcomm.com>
Date: Mon, 17 Nov 2025 10:21:22 +0530
From: Kathiravan Thirumoorthy <kathiravan.thirumoorthy@....qualcomm.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Kathiravan Thirumoorthy <kathiravan.thirumoorthy@....qualcomm.com>
Subject: [PATCH 03/10] soc: qcom: pd-mapper: Use __cleanup() for
 device_node pointers

Apply the __cleanup() attribute to device_node pointers to simplify
resource management and remove explicit of_node_put() calls.

Signed-off-by: Kathiravan Thirumoorthy <kathiravan.thirumoorthy@....qualcomm.com>
---
 drivers/soc/qcom/qcom_pd_mapper.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/soc/qcom/qcom_pd_mapper.c b/drivers/soc/qcom/qcom_pd_mapper.c
index 1bcbe69688d2bc2559a1395929e5cd74d9a7a764..5713029d6527c84e8ba410cebb67bc268c6b3721 100644
--- a/drivers/soc/qcom/qcom_pd_mapper.c
+++ b/drivers/soc/qcom/qcom_pd_mapper.c
@@ -612,10 +612,10 @@ static void qcom_pdm_stop(struct qcom_pdm_data *data)
 
 static struct qcom_pdm_data *qcom_pdm_start(void)
 {
+	struct device_node *root __free(device_node) = NULL;
 	const struct qcom_pdm_domain_data * const *domains;
 	const struct of_device_id *match;
 	struct qcom_pdm_data *data;
-	struct device_node *root;
 	int ret, i;
 
 	root = of_find_node_by_path("/");
@@ -623,7 +623,6 @@ static struct qcom_pdm_data *qcom_pdm_start(void)
 		return ERR_PTR(-ENODEV);
 
 	match = of_match_node(qcom_pdm_domains, root);
-	of_node_put(root);
 	if (!match) {
 		pr_notice("PDM: no support for the platform, userspace daemon might be required.\n");
 		return ERR_PTR(-ENODEV);

-- 
2.34.1