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Message-Id: <20240627131721.678727-4-peng.fan@oss.nxp.com>
Date: Thu, 27 Jun 2024 21:17:21 +0800
From: "Peng Fan (OSS)" <peng.fan@....nxp.com>
To: linus.walleij@...aro.org
Cc: dan.carpenter@...aro.org,
linux-gpio@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org,
aisheng.dong@....com,
festevam@...il.com,
shawnguo@...nel.org,
kernel@...gutronix.de,
u.kleine-koenig@...gutronix.de,
Peng Fan <peng.fan@....com>
Subject: [PATCH V3 3/3] pinctrl: freescale: 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/freescale/pinctrl-imx.c | 25 ++++++-------------
drivers/pinctrl/freescale/pinctrl-imx1-core.c | 16 ++++--------
drivers/pinctrl/freescale/pinctrl-mxs.c | 14 +++--------
3 files changed, 16 insertions(+), 39 deletions(-)
diff --git a/drivers/pinctrl/freescale/pinctrl-imx.c b/drivers/pinctrl/freescale/pinctrl-imx.c
index 1ccdeb86d8a7..9c2680df082c 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx.c
@@ -580,7 +580,6 @@ static int imx_pinctrl_parse_functions(struct device_node *np,
u32 index)
{
struct pinctrl_dev *pctl = ipctl->pctl;
- struct device_node *child;
struct function_desc *func;
struct group_desc *grp;
const char **group_names;
@@ -605,17 +604,15 @@ static int imx_pinctrl_parse_functions(struct device_node *np,
if (!group_names)
return -ENOMEM;
i = 0;
- for_each_child_of_node(np, child)
+ for_each_child_of_node_scoped(np, child)
group_names[i++] = child->name;
func->func.groups = group_names;
i = 0;
- for_each_child_of_node(np, child) {
+ for_each_child_of_node_scoped(np, child) {
grp = devm_kzalloc(ipctl->dev, sizeof(*grp), GFP_KERNEL);
- if (!grp) {
- of_node_put(child);
+ if (!grp)
return -ENOMEM;
- }
mutex_lock(&ipctl->mutex);
radix_tree_insert(&pctl->pin_group_tree,
@@ -635,21 +632,13 @@ static int imx_pinctrl_parse_functions(struct device_node *np,
*/
static bool imx_pinctrl_dt_is_flat_functions(struct device_node *np)
{
- struct device_node *function_np;
- struct device_node *pinctrl_np;
-
- for_each_child_of_node(np, function_np) {
- if (of_property_read_bool(function_np, "fsl,pins")) {
- of_node_put(function_np);
+ for_each_child_of_node_scoped(np, function_np) {
+ if (of_property_read_bool(function_np, "fsl,pins"))
return true;
- }
- for_each_child_of_node(function_np, pinctrl_np) {
- if (of_property_read_bool(pinctrl_np, "fsl,pins")) {
- of_node_put(pinctrl_np);
- of_node_put(function_np);
+ for_each_child_of_node_scoped(function_np, pinctrl_np) {
+ if (of_property_read_bool(pinctrl_np, "fsl,pins"))
return false;
- }
}
}
diff --git a/drivers/pinctrl/freescale/pinctrl-imx1-core.c b/drivers/pinctrl/freescale/pinctrl-imx1-core.c
index 90c696046b38..af1ccfc90bff 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx1-core.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx1-core.c
@@ -508,7 +508,6 @@ static int imx1_pinctrl_parse_functions(struct device_node *np,
struct imx1_pinctrl_soc_info *info,
u32 index)
{
- struct device_node *child;
struct imx1_pmx_func *func;
struct imx1_pin_group *grp;
int ret;
@@ -531,14 +530,12 @@ static int imx1_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 = imx1_pinctrl_parse_groups(child, grp, info, i++);
- if (ret == -ENOMEM) {
- of_node_put(child);
+ if (ret == -ENOMEM)
return ret;
- }
}
return 0;
@@ -548,7 +545,6 @@ static int imx1_pinctrl_parse_dt(struct platform_device *pdev,
struct imx1_pinctrl *pctl, struct imx1_pinctrl_soc_info *info)
{
struct device_node *np = pdev->dev.of_node;
- struct device_node *child;
int ret;
u32 nfuncs = 0;
u32 ngroups = 0;
@@ -557,7 +553,7 @@ static int imx1_pinctrl_parse_dt(struct platform_device *pdev,
if (!np)
return -ENODEV;
- for_each_child_of_node(np, child) {
+ for_each_child_of_node_scoped(np, child) {
++nfuncs;
ngroups += of_get_child_count(child);
}
@@ -579,12 +575,10 @@ static int imx1_pinctrl_parse_dt(struct platform_device *pdev,
if (!info->functions || !info->groups)
return -ENOMEM;
- for_each_child_of_node(np, child) {
+ for_each_child_of_node_scoped(np, child) {
ret = imx1_pinctrl_parse_functions(child, info, ifunc++);
- if (ret == -ENOMEM) {
- of_node_put(child);
+ if (ret == -ENOMEM)
return -ENOMEM;
- }
}
return 0;
diff --git a/drivers/pinctrl/freescale/pinctrl-mxs.c b/drivers/pinctrl/freescale/pinctrl-mxs.c
index 4813a9e16cb3..edb242d30609 100644
--- a/drivers/pinctrl/freescale/pinctrl-mxs.c
+++ b/drivers/pinctrl/freescale/pinctrl-mxs.c
@@ -490,16 +490,14 @@ static int mxs_pinctrl_probe_dt(struct platform_device *pdev,
/* Get groups for each function */
idxf = 0;
fn = fnull;
- for_each_child_of_node(np, child) {
+ for_each_child_of_node_scoped(np, child) {
if (is_mxs_gpio(child))
continue;
if (of_property_read_u32(child, "reg", &val)) {
ret = mxs_pinctrl_parse_group(pdev, child,
idxg++, NULL);
- if (ret) {
- of_node_put(child);
+ if (ret)
return ret;
- }
continue;
}
@@ -509,19 +507,15 @@ static int mxs_pinctrl_probe_dt(struct platform_device *pdev,
f->ngroups,
sizeof(*f->groups),
GFP_KERNEL);
- if (!f->groups) {
- of_node_put(child);
+ if (!f->groups)
return -ENOMEM;
- }
fn = child->name;
i = 0;
}
ret = mxs_pinctrl_parse_group(pdev, child, idxg++,
&f->groups[i++]);
- if (ret) {
- of_node_put(child);
+ if (ret)
return ret;
- }
}
return 0;
--
2.37.1
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