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Message-Id: <20240501-pinctrl-cleanup-v1-14-797ceca46e5c@nxp.com>
Date: Wed, 01 May 2024 20:56:12 +0800
From: "Peng Fan (OSS)" <peng.fan@....nxp.com>
To: Linus Walleij <linus.walleij@...aro.org>,
Thierry Reding <thierry.reding@...il.com>,
Jonathan Hunter <jonathanh@...dia.com>, Dvorkin Dmitry <dvorkin@...bo.com>,
Wells Lu <wellslutw@...il.com>, Maxime Coquelin <mcoquelin.stm32@...il.com>,
Alexandre Torgue <alexandre.torgue@...s.st.com>,
Emil Renner Berthing <kernel@...il.dk>,
Jianlong Huang <jianlong.huang@...rfivetech.com>,
Hal Feng <hal.feng@...rfivetech.com>, Orson Zhai <orsonzhai@...il.com>,
Baolin Wang <baolin.wang@...ux.alibaba.com>,
Chunyan Zhang <zhang.lyra@...il.com>, Viresh Kumar <vireshk@...nel.org>,
Shiraz Hashim <shiraz.linux.kernel@...il.com>, soc@...nel.org,
Krzysztof Kozlowski <krzk@...nel.org>,
Sylwester Nawrocki <s.nawrocki@...sung.com>,
Alim Akhtar <alim.akhtar@...sung.com>,
Geert Uytterhoeven <geert+renesas@...der.be>,
Patrice Chotard <patrice.chotard@...s.st.com>,
Heiko Stuebner <heiko@...ech.de>, Damien Le Moal <dlemoal@...nel.org>,
Ludovic Desroches <ludovic.desroches@...rochip.com>,
Nicolas Ferre <nicolas.ferre@...rochip.com>,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
Claudiu Beznea <claudiu.beznea@...on.dev>,
Dong Aisheng <aisheng.dong@....com>, Fabio Estevam <festevam@...il.com>,
Shawn Guo <shawnguo@...nel.org>, Jacky Bai <ping.bai@....com>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Chester Lin <chester62515@...il.com>, Matthias Brugger <mbrugger@...e.com>,
Ghennadi Procopciuc <ghennadi.procopciuc@....nxp.com>,
Sean Wang <sean.wang@...nel.org>, Matthias Brugger <matthias.bgg@...il.com>,
AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
Sascha Hauer <s.hauer@...gutronix.de>,
Andrew Jeffery <andrew@...econstruct.com.au>, Joel Stanley <joel@....id.au>,
Dan Carpenter <dan.carpenter@...aro.org>
Cc: linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-tegra@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-stm32@...md-mailman.stormreply.com, linux-samsung-soc@...r.kernel.org,
linux-renesas-soc@...r.kernel.org, linux-rockchip@...ts.infradead.org,
linux-riscv@...ts.infradead.org, linux-mediatek@...ts.infradead.org,
imx@...ts.linux.dev, linux-aspeed@...ts.ozlabs.org,
openbmc@...ts.ozlabs.org, Peng Fan <peng.fan@....com>
Subject: [PATCH 14/21] pinctrl: at91: Use scope based of_node_put()
cleanups
From: Peng Fan <peng.fan@....com>
Use scope based of_node_put() cleanup to simplify code.
Signed-off-by: Peng Fan <peng.fan@....com>
---
drivers/pinctrl/pinctrl-at91-pio4.c | 7 ++-----
drivers/pinctrl/pinctrl-at91.c | 17 +++++------------
2 files changed, 7 insertions(+), 17 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..cc32db0797e6 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -292,7 +292,7 @@ static int at91_dt_node_to_map(struct pinctrl_dev *pctldev,
struct at91_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
const struct at91_pin_group *grp;
struct pinctrl_map *new_map;
- struct device_node *parent;
+ struct device_node *parent __free(device_node) = NULL;
int map_num = 1;
int i;
@@ -325,7 +325,6 @@ static int at91_dt_node_to_map(struct pinctrl_dev *pctldev,
new_map[0].type = PIN_MAP_TYPE_MUX_GROUP;
new_map[0].data.mux.function = parent->name;
new_map[0].data.mux.group = np->name;
- of_node_put(parent);
/* create config map */
new_map++;
@@ -1244,7 +1243,6 @@ 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 +1265,12 @@ 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 +1292,6 @@ 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 +1344,12 @@ 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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