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regulator: Add missing of_node_put()

Browse source 
of_find_node_by_name() returns a node pointer with refcount incremented, use
of_node_put() on it when done.

of_find_node_by_name() will call of_node_put() against from parameter,
thus we also need to call of_node_get(from) before calling
of_find_node_by_name().

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Axel Lin 2013-01-27 21:16:56 +08:00 committed by Mark Brown
parent 9c9588a732
commit c92f5dd2c4
8 changed files with 26 additions and 11 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

3
drivers/regulator/88pm8607.c
View file

@ -372,7 +372,7 @@ static int pm8607_regulator_dt_init(struct platform_device *pdev,
struct regulator_config *config)
{
struct device_node *nproot, *np;
nproot = pdev->dev.parent->of_node;
nproot = of_node_get(pdev->dev.parent->of_node);
if (!nproot)
return -ENODEV;
nproot = of_find_node_by_name(nproot, "regulators");
@ -388,6 +388,7 @@ static int pm8607_regulator_dt_init(struct platform_device *pdev,
break;
}
}
of_node_put(nproot);
return 0;
}
#else

5
drivers/regulator/da9052-regulator.c
View file

@ -395,9 +395,9 @@ static int da9052_regulator_probe(struct platform_device *pdev)
config.init_data = pdata->regulators[pdev->id];
} else {
#ifdef CONFIG_OF
struct device_node *nproot = da9052->dev->of_node;
struct device_node *np;
struct device_node *nproot, *np;
nproot = of_node_get(da9052->dev->of_node);
if (!nproot)
return -ENODEV;
@ -414,6 +414,7 @@ static int da9052_regulator_probe(struct platform_device *pdev)
break;
}
}
of_node_put(nproot);
#endif
}

7
drivers/regulator/max8907-regulator.c
View file

@ -224,11 +224,11 @@ static struct of_regulator_match max8907_matches[] = {
static int max8907_regulator_parse_dt(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.parent->of_node;
struct device_node *regulators;
struct device_node *np, *regulators;
int ret;
if (!pdev->dev.parent->of_node)
np = of_node_get(pdev->dev.parent->of_node);
if (!np)
return 0;
regulators = of_find_node_by_name(np, "regulators");
@ -239,6 +239,7 @@ static int max8907_regulator_parse_dt(struct platform_device *pdev)
ret = of_regulator_match(&pdev->dev, regulators, max8907_matches,
ARRAY_SIZE(max8907_matches));
of_node_put(regulators);
if (ret < 0) {
dev_err(&pdev->dev, "Error parsing regulator init data: %d\n",
ret);

3
drivers/regulator/max8925-regulator.c
View file

@ -252,7 +252,7 @@ static int max8925_regulator_dt_init(struct platform_device *pdev,
{
struct device_node *nproot, *np;
int rcount;
nproot = pdev->dev.parent->of_node;
nproot = of_node_get(pdev->dev.parent->of_node);
if (!nproot)
return -ENODEV;
np = of_find_node_by_name(nproot, "regulators");
@ -263,6 +263,7 @@ static int max8925_regulator_dt_init(struct platform_device *pdev,
rcount = of_regulator_match(&pdev->dev, np,
&max8925_regulator_matches[ridx], 1);
of_node_put(np);
if (rcount < 0)
return -ENODEV;
config->init_data = max8925_regulator_matches[ridx].init_data;

4
drivers/regulator/max8997.c
View file

@ -960,7 +960,7 @@ static int max8997_pmic_dt_parse_pdata(struct platform_device *pdev,
struct max8997_regulator_data *rdata;
unsigned int i, dvs_voltage_nr = 1, ret;
pmic_np = iodev->dev->of_node;
pmic_np = of_node_get(iodev->dev->of_node);
if (!pmic_np) {
dev_err(&pdev->dev, "could not find pmic sub-node\n");
return -ENODEV;
@ -980,6 +980,7 @@ static int max8997_pmic_dt_parse_pdata(struct platform_device *pdev,
rdata = devm_kzalloc(&pdev->dev, sizeof(*rdata) *
pdata->num_regulators, GFP_KERNEL);
if (!rdata) {
of_node_put(regulators_np);
dev_err(&pdev->dev, "could not allocate memory for regulator data\n");
return -ENOMEM;
}
@ -1002,6 +1003,7 @@ static int max8997_pmic_dt_parse_pdata(struct platform_device *pdev,
rdata->reg_node = reg_np;
rdata++;
}
of_node_put(regulators_np);
if (of_get_property(pmic_np, "max8997,pmic-buck1-uses-gpio-dvs", NULL))
pdata->buck1_gpiodvs = true;

7
drivers/regulator/mc13xxx-regulator-core.c
View file

@ -175,6 +175,7 @@ int mc13xxx_get_num_regulators_dt(struct platform_device *pdev)
for_each_child_of_node(parent, child)
num++;
of_node_put(parent);
return num;
}
EXPORT_SYMBOL_GPL(mc13xxx_get_num_regulators_dt);
@ -197,8 +198,11 @@ struct mc13xxx_regulator_init_data *mc13xxx_parse_regulators_dt(
data = devm_kzalloc(&pdev->dev, sizeof(*data) * priv->num_regulators,
GFP_KERNEL);
if (!data)
if (!data) {
of_node_put(parent);
return NULL;
}
p = data;
for_each_child_of_node(parent, child) {
@ -217,6 +221,7 @@ struct mc13xxx_regulator_init_data *mc13xxx_parse_regulators_dt(
}
}
}
of_node_put(parent);
*num_parsed = parsed;
return data;

2
drivers/regulator/palmas-regulator.c
View file

@ -527,6 +527,7 @@ static void palmas_dt_to_pdata(struct device *dev,
u32 prop;
int idx, ret;
node = of_node_get(node);
regulators = of_find_node_by_name(node, "regulators");
if (!regulators) {
dev_info(dev, "regulator node not found\n");
@ -535,6 +536,7 @@ static void palmas_dt_to_pdata(struct device *dev,
ret = of_regulator_match(dev, regulators, palmas_matches,
PALMAS_NUM_REGS);
of_node_put(regulators);
if (ret < 0) {
dev_err(dev, "Error parsing regulator init data: %d\n", ret);
return;

6
drivers/regulator/tps65910-regulator.c
View file

@ -964,8 +964,7 @@ static struct tps65910_board *tps65910_parse_dt_reg_data(
{
struct tps65910_board *pmic_plat_data;
struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
struct device_node *np = pdev->dev.parent->of_node;
struct device_node *regulators;
struct device_node *np, *regulators;
struct of_regulator_match *matches;
unsigned int prop;
int idx = 0, ret, count;
@ -978,6 +977,7 @@ static struct tps65910_board *tps65910_parse_dt_reg_data(
return NULL;
}
np = of_node_get(pdev->dev.parent->of_node);
regulators = of_find_node_by_name(np, "regulators");
if (!regulators) {
dev_err(&pdev->dev, "regulator node not found\n");
@ -994,11 +994,13 @@ static struct tps65910_board *tps65910_parse_dt_reg_data(
matches = tps65911_matches;
break;
default:
of_node_put(regulators);
dev_err(&pdev->dev, "Invalid tps chip version\n");
return NULL;
}
ret = of_regulator_match(&pdev->dev, regulators, matches, count);
of_node_put(regulators);
if (ret < 0) {
dev_err(&pdev->dev, "Error parsing regulator init data: %d\n",
ret);