From: Peng Fan <peng.fan@xxxxxxx>
Use scope based of_node_put() cleanup to simplify code.
Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
---
drivers/pinctrl/freescale/pinctrl-imx.c | 31 ++++++++-------------------
drivers/pinctrl/freescale/pinctrl-imx1-core.c | 19 ++++++----------
drivers/pinctrl/freescale/pinctrl-mxs.c | 24 ++++++++-------------
3 files changed, 24 insertions(+), 50 deletions(-)
diff --git a/drivers/pinctrl/freescale/pinctrl-imx.c b/drivers/pinctrl/freescale/pinctrl-imx.c
index 2d3d80921c0d..cb129325bf24 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx.c
@@ -63,7 +63,7 @@ static int imx_dt_node_to_map(struct pinctrl_dev *pctldev,
const struct imx_pinctrl_soc_info *info = ipctl->info;
const struct group_desc *grp;
struct pinctrl_map *new_map;
- struct device_node *parent;
+ struct device_node *parent __free(device_node) = NULL;
struct imx_pin *pin;
int map_num = 1;
int i, j;
@@ -105,7 +105,6 @@ static int imx_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++;
@@ -580,7 +579,6 @@ 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 +603,15 @@ 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->group_names = 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 +631,13 @@ 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;
- }
}
}
@@ -720,7 +708,7 @@ int imx_pinctrl_probe(struct platform_device *pdev,
struct regmap_config config = { .name = "gpr" };
struct device_node *dev_np = pdev->dev.of_node;
struct pinctrl_desc *imx_pinctrl_desc;
- struct device_node *np;
+ struct device_node *np __free(device_node) = NULL;
struct imx_pinctrl *ipctl;
struct regmap *gpr;
int ret, i;
@@ -765,7 +753,6 @@ int imx_pinctrl_probe(struct platform_device *pdev,
}
ipctl->input_sel_base = of_iomap(np, 0);
- of_node_put(np);
if (!ipctl->input_sel_base) {
dev_err(&pdev->dev,
"iomuxc input select base address not found\n");
diff --git a/drivers/pinctrl/freescale/pinctrl-imx1-core.c b/drivers/pinctrl/freescale/pinctrl-imx1-core.c
index 90c696046b38..409efa1ce8f8 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx1-core.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx1-core.c
@@ -226,7 +226,7 @@ static int imx1_dt_node_to_map(struct pinctrl_dev *pctldev,
const struct imx1_pinctrl_soc_info *info = ipctl->info;
const struct imx1_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, j;
@@ -261,7 +261,6 @@ static int imx1_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++;
@@ -508,7 +507,6 @@ 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 +529,12 @@ 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 +544,6 @@ 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 +552,7 @@ 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 +574,10 @@ 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 e77311f26262..baa1e806688d 100644
--- a/drivers/pinctrl/freescale/pinctrl-mxs.c
+++ b/drivers/pinctrl/freescale/pinctrl-mxs.c
@@ -406,22 +406,22 @@ static int mxs_pinctrl_probe_dt(struct platform_device *pdev,
{
struct mxs_pinctrl_soc_data *soc = d->soc;
struct device_node *np = pdev->dev.of_node;
- struct device_node *child;
+ struct device_node *ch;
struct mxs_function *f;
const char *fn, *fnull = "";
int i = 0, idxf = 0, idxg = 0;
int ret;
u32 val;
- child = of_get_next_child(np, NULL);
- if (!child) {
+ ch = of_get_next_child(np, NULL);
+ if (!ch) {
dev_err(&pdev->dev, "no group is defined\n");
return -ENOENT;
}
/* Count total functions and groups */
fn = fnull;
- for_each_child_of_node(np, child) {
+ for_each_child_of_node_scoped(np, child) {
if (is_mxs_gpio(child))
continue;
soc->ngroups++;
@@ -450,7 +450,7 @@ static int mxs_pinctrl_probe_dt(struct platform_device *pdev,
/* Count groups for each function */
fn = fnull;
f = &soc->functions[idxf];
- 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))
@@ -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
