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/samsung/pinctrl-exynos-arm.c | 3 +--
drivers/pinctrl/samsung/pinctrl-exynos.c | 16 ++++------------
drivers/pinctrl/samsung/pinctrl-s3c64xx.c | 8 ++------
drivers/pinctrl/samsung/pinctrl-samsung.c | 26 +++++++-------------------
4 files changed, 14 insertions(+), 39 deletions(-)
diff --git a/drivers/pinctrl/samsung/pinctrl-exynos-arm.c b/drivers/pinctrl/samsung/pinctrl-exynos-arm.c
index 85ddf49a5188..9a57b3ceb536 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos-arm.c
+++ b/drivers/pinctrl/samsung/pinctrl-exynos-arm.c
@@ -56,7 +56,7 @@ s5pv210_retention_init(struct samsung_pinctrl_drv_data *drvdata,
const struct samsung_retention_data *data)
{
struct samsung_retention_ctrl *ctrl;
- struct device_node *np;
+ struct device_node *np __free(device_node) = NULL;
void __iomem *clk_base;
ctrl = devm_kzalloc(drvdata->dev, sizeof(*ctrl), GFP_KERNEL);
@@ -71,7 +71,6 @@ s5pv210_retention_init(struct samsung_pinctrl_drv_data *drvdata,
}
clk_base = of_iomap(np, 0);
- of_node_put(np);
if (!clk_base) {
pr_err("%s: failed to map clock registers\n", __func__);
return ERR_PTR(-EINVAL);
diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.c b/drivers/pinctrl/samsung/pinctrl-exynos.c
index 871c1eb46ddf..3775999536e2 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos.c
+++ b/drivers/pinctrl/samsung/pinctrl-exynos.c
@@ -582,7 +582,7 @@ static void exynos_irq_demux_eint16_31(struct irq_desc *desc)
__init int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
{
struct device *dev = d->dev;
- struct device_node *wkup_np = NULL;
+ struct device_node *wkup_np __free(device_node) = NULL;
struct device_node *np;
struct samsung_pin_bank *bank;
struct exynos_weint_data *weint_data;
@@ -612,17 +612,14 @@ __init int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
bank->irq_chip = devm_kmemdup(dev, irq_chip, sizeof(*irq_chip),
GFP_KERNEL);
- if (!bank->irq_chip) {
- of_node_put(wkup_np);
+ if (!bank->irq_chip)
return -ENOMEM;
- }
bank->irq_chip->chip.name = bank->name;
bank->irq_domain = irq_domain_create_linear(bank->fwnode,
bank->nr_pins, &exynos_eint_irqd_ops, bank);
if (!bank->irq_domain) {
dev_err(dev, "wkup irq domain add failed\n");
- of_node_put(wkup_np);
return -ENXIO;
}
@@ -635,10 +632,8 @@ __init int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
weint_data = devm_kcalloc(dev,
bank->nr_pins, sizeof(*weint_data),
GFP_KERNEL);
- if (!weint_data) {
- of_node_put(wkup_np);
+ if (!weint_data)
return -ENOMEM;
- }
for (idx = 0; idx < bank->nr_pins; ++idx) {
irq = irq_of_parse_and_map(to_of_node(bank->fwnode), idx);
@@ -655,13 +650,10 @@ __init int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
}
}
- if (!muxed_banks) {
- of_node_put(wkup_np);
+ if (!muxed_banks)
return 0;
- }
irq = irq_of_parse_and_map(wkup_np, 0);
- of_node_put(wkup_np);
if (!irq) {
dev_err(dev, "irq number for muxed EINTs not found\n");
return 0;
diff --git a/drivers/pinctrl/samsung/pinctrl-s3c64xx.c b/drivers/pinctrl/samsung/pinctrl-s3c64xx.c
index c5d92db4fdb1..9acf65eb0f5b 100644
--- a/drivers/pinctrl/samsung/pinctrl-s3c64xx.c
+++ b/drivers/pinctrl/samsung/pinctrl-s3c64xx.c
@@ -685,7 +685,7 @@ static const struct of_device_id s3c64xx_eint0_irq_ids[] = {
static int s3c64xx_eint_eint0_init(struct samsung_pinctrl_drv_data *d)
{
struct device *dev = d->dev;
- struct device_node *eint0_np = NULL;
+ struct device_node *eint0_np __free(device_node) = NULL;
struct device_node *np;
struct samsung_pin_bank *bank;
struct s3c64xx_eint0_data *data;
@@ -701,10 +701,8 @@ static int s3c64xx_eint_eint0_init(struct samsung_pinctrl_drv_data *d)
return -ENODEV;
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
- if (!data) {
- of_node_put(eint0_np);
+ if (!data)
return -ENOMEM;
- }
data->drvdata = d;
for (i = 0; i < NUM_EINT0_IRQ; ++i) {
@@ -713,7 +711,6 @@ static int s3c64xx_eint_eint0_init(struct samsung_pinctrl_drv_data *d)
irq = irq_of_parse_and_map(eint0_np, i);
if (!irq) {
dev_err(dev, "failed to get wakeup EINT IRQ %d\n", i);
- of_node_put(eint0_np);
return -ENXIO;
}
@@ -721,7 +718,6 @@ static int s3c64xx_eint_eint0_init(struct samsung_pinctrl_drv_data *d)
s3c64xx_eint0_handlers[i],
data);
}
- of_node_put(eint0_np);
bank = d->pin_banks;
for (i = 0; i < d->nr_banks; ++i, ++bank) {
diff --git a/drivers/pinctrl/samsung/pinctrl-samsung.c b/drivers/pinctrl/samsung/pinctrl-samsung.c
index ed07e23e0912..4cae112ca15b 100644
--- a/drivers/pinctrl/samsung/pinctrl-samsung.c
+++ b/drivers/pinctrl/samsung/pinctrl-samsung.c
@@ -250,7 +250,6 @@ static int samsung_dt_node_to_map(struct pinctrl_dev *pctldev,
{
struct samsung_pinctrl_drv_data *drvdata;
unsigned reserved_maps;
- struct device_node *np;
int ret;
drvdata = pinctrl_dev_get_drvdata(pctldev);
@@ -265,12 +264,11 @@ static int samsung_dt_node_to_map(struct pinctrl_dev *pctldev,
&reserved_maps,
num_maps);
- for_each_child_of_node(np_config, np) {
+ for_each_child_of_node_scoped(np_config, np) {
ret = samsung_dt_subnode_to_map(drvdata, pctldev->dev, np, map,
&reserved_maps, num_maps);
if (ret < 0) {
samsung_dt_free_map(pctldev, *map, *num_maps);
- of_node_put(np);
return ret;
}
}
@@ -753,7 +751,6 @@ static struct samsung_pmx_func *samsung_pinctrl_create_functions(
{
struct samsung_pmx_func *functions, *func;
struct device_node *dev_np = dev->of_node;
- struct device_node *cfg_np;
unsigned int func_cnt = 0;
int ret;
@@ -761,9 +758,7 @@ static struct samsung_pmx_func *samsung_pinctrl_create_functions(
* Iterate over all the child nodes of the pin controller node
* and create pin groups and pin function lists.
*/
- for_each_child_of_node(dev_np, cfg_np) {
- struct device_node *func_np;
-
+ for_each_child_of_node_scoped(dev_np, cfg_np) {
if (!of_get_child_count(cfg_np)) {
if (!of_find_property(cfg_np,
"samsung,pin-function", NULL))
@@ -772,7 +767,7 @@ static struct samsung_pmx_func *samsung_pinctrl_create_functions(
continue;
}
- for_each_child_of_node(cfg_np, func_np) {
+ for_each_child_of_node_scoped(cfg_np, func_np) {
if (!of_find_property(func_np,
"samsung,pin-function", NULL))
continue;
@@ -791,16 +786,12 @@ static struct samsung_pmx_func *samsung_pinctrl_create_functions(
* and create pin groups and pin function lists.
*/
func_cnt = 0;
- for_each_child_of_node(dev_np, cfg_np) {
- struct device_node *func_np;
-
+ for_each_child_of_node_scoped(dev_np, cfg_np) {
if (!of_get_child_count(cfg_np)) {
ret = samsung_pinctrl_create_function(dev, drvdata,
cfg_np, func);
- if (ret < 0) {
- of_node_put(cfg_np);
+ if (ret < 0)
return ERR_PTR(ret);
- }
if (ret > 0) {
++func;
++func_cnt;
@@ -808,14 +799,11 @@ static struct samsung_pmx_func *samsung_pinctrl_create_functions(
continue;
}
- for_each_child_of_node(cfg_np, func_np) {
+ for_each_child_of_node_scoped(cfg_np, func_np) {
ret = samsung_pinctrl_create_function(dev, drvdata,
func_np, func);
- if (ret < 0) {
- of_node_put(func_np);
- of_node_put(cfg_np);
+ if (ret < 0)
return ERR_PTR(ret);
- }
if (ret > 0) {
++func;
++func_cnt;
--
2.37.1
