linux-kernel - [PATCH -next v2 3/4] soc: ti: knav_qmss_queue: Simplify with scoped for each OF child loop

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Message-ID: <20240830063228.3519385-4-ruanjinjie@huawei.com>
Date: Fri, 30 Aug 2024 14:32:27 +0800
From: Jinjie Ruan <ruanjinjie@...wei.com>
To: <nm@...com>, <ssantosh@...nel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <krzk@...nel.org>, <jic23@...nel.org>
CC: <ruanjinjie@...wei.com>
Subject: [PATCH -next v2 3/4] soc: ti: knav_qmss_queue: Simplify with scoped for each OF child loop

Use scoped for_each_child_of_node_scoped() when iterating over device
nodes to make code a bit simpler.

Signed-off-by: Jinjie Ruan <ruanjinjie@...wei.com>
---
v2:
- Split into 2 patches.
- Rebased the newest next.
- Update the commit message.
---
 drivers/soc/ti/knav_qmss_queue.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/soc/ti/knav_qmss_queue.c b/drivers/soc/ti/knav_qmss_queue.c
index 6c98738e548a..02983f8ba1b6 100644
--- a/drivers/soc/ti/knav_qmss_queue.c
+++ b/drivers/soc/ti/knav_qmss_queue.c
@@ -1082,7 +1082,6 @@ static int knav_queue_setup_regions(struct knav_device *kdev,
 	struct device_node *regions __free(device_node) =
 			of_get_child_by_name(node, "descriptor-regions");
 	struct knav_region *region;
-	struct device_node *child;
 	u32 temp[2];
 	int ret;
 
@@ -1090,10 +1089,9 @@ static int knav_queue_setup_regions(struct knav_device *kdev,
 		return dev_err_probe(dev, -ENODEV,
 				     "descriptor-regions not specified\n");
 
-	for_each_child_of_node(regions, child) {
+	for_each_child_of_node_scoped(regions, child) {
 		region = devm_kzalloc(dev, sizeof(*region), GFP_KERNEL);
 		if (!region) {
-			of_node_put(child);
 			dev_err(dev, "out of memory allocating region\n");
 			return -ENOMEM;
 		}
@@ -1400,7 +1398,6 @@ static int knav_queue_init_qmgrs(struct knav_device *kdev,
 	struct device_node *qmgrs __free(device_node) =
 			of_get_child_by_name(node, "qmgrs");
 	struct knav_qmgr_info *qmgr;
-	struct device_node *child;
 	u32 temp[2];
 	int ret;
 
@@ -1408,10 +1405,9 @@ static int knav_queue_init_qmgrs(struct knav_device *kdev,
 		return dev_err_probe(dev, -ENODEV,
 				     "queue manager info not specified\n");
 
-	for_each_child_of_node(qmgrs, child) {
+	for_each_child_of_node_scoped(qmgrs, child) {
 		qmgr = devm_kzalloc(dev, sizeof(*qmgr), GFP_KERNEL);
 		if (!qmgr) {
-			of_node_put(child);
 			dev_err(dev, "out of memory allocating qmgr\n");
 			return -ENOMEM;
 		}
@@ -1506,12 +1502,10 @@ static int knav_queue_init_pdsps(struct knav_device *kdev,
 {
 	struct device *dev = kdev->dev;
 	struct knav_pdsp_info *pdsp;
-	struct device_node *child;
 
-	for_each_child_of_node(pdsps, child) {
+	for_each_child_of_node_scoped(pdsps, child) {
 		pdsp = devm_kzalloc(dev, sizeof(*pdsp), GFP_KERNEL);
 		if (!pdsp) {
-			of_node_put(child);
 			dev_err(dev, "out of memory allocating pdsp\n");
 			return -ENOMEM;
 		}
-- 
2.34.1