[PATCH v2 11/20] pinctrl: at91: Use scope based of_node_put() cleanups

From: "Peng Fan (OSS)" <peng.fan@oss.nxp.com>
To: Linus Walleij <linus.walleij@linaro.org>,
	 Thierry Reding <thierry.reding@gmail.com>,
	 Jonathan Hunter <jonathanh@nvidia.com>,
	Dvorkin Dmitry <dvorkin@tibbo.com>,
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	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	 Alexandre Torgue <alexandre.torgue@foss.st.com>,
	 Emil Renner Berthing <kernel@esmil.dk>,
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	 Baolin Wang <baolin.wang@linux.alibaba.com>,
	 Chunyan Zhang <zhang.lyra@gmail.com>,
	Viresh Kumar <vireshk@kernel.org>,
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	 Ghennadi Procopciuc <ghennadi.procopciuc@oss.nxp.com>,
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	 Sascha Hauer <s.hauer@pengutronix.de>,
	 Andrew Jeffery <andrew@codeconstruct.com.au>,
	Joel Stanley <joel@jms.id.au>,
	 Dan Carpenter <dan.carpenter@linaro.org>,
	Tony Lindgren <tony@atomide.com>,
	 Stephen Warren <swarren@wwwdotorg.org>
Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
	 linux-tegra@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	 linux-stm32@st-md-mailman.stormreply.com,
	linux-samsung-soc@vger.kernel.org,
	 linux-renesas-soc@vger.kernel.org,
	linux-rockchip@lists.infradead.org,
	 linux-riscv@lists.infradead.org,
	linux-mediatek@lists.infradead.org,  imx@lists.linux.dev,
	linux-aspeed@lists.ozlabs.org,  openbmc@lists.ozlabs.org,
	Peng Fan <peng.fan@nxp.com>
Subject: [PATCH v2 11/20] pinctrl: at91: Use scope based of_node_put() cleanups
Date: Sat, 04 May 2024 21:20:09 +0800	[thread overview]
Message-ID: <20240504-pinctrl-cleanup-v2-11-26c5f2dc1181@nxp.com> (raw)
In-Reply-To: <20240504-pinctrl-cleanup-v2-0-26c5f2dc1181@nxp.com>

From: Peng Fan <peng.fan@nxp.com>

Use scope based of_node_put() cleanup to simplify code.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 drivers/pinctrl/pinctrl-at91-pio4.c |  7 ++-----
 drivers/pinctrl/pinctrl-at91.c      | 14 ++++----------
 2 files changed, 6 insertions(+), 15 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-at91-pio4.c b/drivers/pinctrl/pinctrl-at91-pio4.c
index a27c01fcbb47..8b01d312305a 100644
--- a/drivers/pinctrl/pinctrl-at91-pio4.c
+++ b/drivers/pinctrl/pinctrl-at91-pio4.c
@@ -632,7 +632,6 @@ static int atmel_pctl_dt_node_to_map(struct pinctrl_dev *pctldev,
 				     struct pinctrl_map **map,
 				     unsigned int *num_maps)
 {
-	struct device_node *np;
 	unsigned int reserved_maps;
 	int ret;
 
@@ -648,13 +647,11 @@ static int atmel_pctl_dt_node_to_map(struct pinctrl_dev *pctldev,
 	ret = atmel_pctl_dt_subnode_to_map(pctldev, np_config, map,
 					   &reserved_maps, num_maps);
 	if (ret) {
-		for_each_child_of_node(np_config, np) {
+		for_each_child_of_node_scoped(np_config, np) {
 			ret = atmel_pctl_dt_subnode_to_map(pctldev, np, map,
 						    &reserved_maps, num_maps);
-			if (ret < 0) {
-				of_node_put(np);
+			if (ret < 0)
 				break;
-			}
 		}
 	}
 
diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index 5aa9d5c533c6..b3c3f5fb2e2e 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -1244,7 +1244,6 @@ static int at91_pinctrl_parse_groups(struct device_node *np,
 static int at91_pinctrl_parse_functions(struct device_node *np,
 					struct at91_pinctrl *info, u32 index)
 {
-	struct device_node *child;
 	struct at91_pmx_func *func;
 	struct at91_pin_group *grp;
 	int ret;
@@ -1267,14 +1266,12 @@ static int at91_pinctrl_parse_functions(struct device_node *np,
 	if (!func->groups)
 		return -ENOMEM;
 
-	for_each_child_of_node(np, child) {
+	for_each_child_of_node_scoped(np, child) {
 		func->groups[i] = child->name;
 		grp = &info->groups[grp_index++];
 		ret = at91_pinctrl_parse_groups(child, grp, info, i++);
-		if (ret) {
-			of_node_put(child);
+		if (ret)
 			return ret;
-		}
 	}
 
 	return 0;
@@ -1296,7 +1293,6 @@ static int at91_pinctrl_probe_dt(struct platform_device *pdev,
 	int i, j, ngpio_chips_enabled = 0;
 	uint32_t *tmp;
 	struct device_node *np = dev->of_node;
-	struct device_node *child;
 
 	if (!np)
 		return -ENODEV;
@@ -1349,14 +1345,12 @@ static int at91_pinctrl_probe_dt(struct platform_device *pdev,
 
 	i = 0;
 
-	for_each_child_of_node(np, child) {
+	for_each_child_of_node_scoped(np, child) {
 		if (of_device_is_compatible(child, gpio_compat))
 			continue;
 		ret = at91_pinctrl_parse_functions(child, info, i++);
-		if (ret) {
-			of_node_put(child);
+		if (ret)
 			return dev_err_probe(dev, ret, "failed to parse function\n");
-		}
 	}
 
 	return 0;

-- 
2.37.1


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