charger-manager : Replace kzalloc to devm_kzalloc and remove uneccessary code
Use devm function for dynamic memory allocation.
Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
diff --git a/drivers/power/charger-manager.c b/drivers/power/charger-manager.c
index e30e847..7287c0e 100644
--- a/drivers/power/charger-manager.c
+++ b/drivers/power/charger-manager.c
@@ -1378,7 +1378,8 @@
charger = &desc->charger_regulators[i];
snprintf(buf, 10, "charger.%d", i);
- str = kzalloc(sizeof(char) * (strlen(buf) + 1), GFP_KERNEL);
+ str = devm_kzalloc(cm->dev,
+ sizeof(char) * (strlen(buf) + 1), GFP_KERNEL);
if (!str) {
ret = -ENOMEM;
goto err;
@@ -1452,30 +1453,23 @@
rtc_dev = NULL;
dev_err(&pdev->dev, "Cannot get RTC %s\n",
g_desc->rtc_name);
- ret = -ENODEV;
- goto err_alloc;
+ return -ENODEV;
}
}
if (!desc) {
dev_err(&pdev->dev, "No platform data (desc) found\n");
- ret = -ENODEV;
- goto err_alloc;
+ return -ENODEV;
}
- cm = kzalloc(sizeof(struct charger_manager), GFP_KERNEL);
- if (!cm) {
- ret = -ENOMEM;
- goto err_alloc;
- }
+ cm = devm_kzalloc(&pdev->dev,
+ sizeof(struct charger_manager), GFP_KERNEL);
+ if (!cm)
+ return -ENOMEM;
/* Basic Values. Unspecified are Null or 0 */
cm->dev = &pdev->dev;
- cm->desc = kmemdup(desc, sizeof(struct charger_desc), GFP_KERNEL);
- if (!cm->desc) {
- ret = -ENOMEM;
- goto err_alloc_desc;
- }
+ cm->desc = desc;
cm->last_temp_mC = INT_MIN; /* denotes "unmeasured, yet" */
/*
@@ -1498,27 +1492,23 @@
}
if (!desc->charger_regulators || desc->num_charger_regulators < 1) {
- ret = -EINVAL;
dev_err(&pdev->dev, "charger_regulators undefined\n");
- goto err_no_charger;
+ return -EINVAL;
}
if (!desc->psy_charger_stat || !desc->psy_charger_stat[0]) {
dev_err(&pdev->dev, "No power supply defined\n");
- ret = -EINVAL;
- goto err_no_charger_stat;
+ return -EINVAL;
}
/* Counting index only */
while (desc->psy_charger_stat[i])
i++;
- cm->charger_stat = kzalloc(sizeof(struct power_supply *) * (i + 1),
- GFP_KERNEL);
- if (!cm->charger_stat) {
- ret = -ENOMEM;
- goto err_no_charger_stat;
- }
+ cm->charger_stat = devm_kzalloc(&pdev->dev,
+ sizeof(struct power_supply *) * i, GFP_KERNEL);
+ if (!cm->charger_stat)
+ return -ENOMEM;
for (i = 0; desc->psy_charger_stat[i]; i++) {
cm->charger_stat[i] = power_supply_get_by_name(
@@ -1526,8 +1516,7 @@
if (!cm->charger_stat[i]) {
dev_err(&pdev->dev, "Cannot find power supply \"%s\"\n",
desc->psy_charger_stat[i]);
- ret = -ENODEV;
- goto err_chg_stat;
+ return -ENODEV;
}
}
@@ -1535,21 +1524,18 @@
if (!cm->fuel_gauge) {
dev_err(&pdev->dev, "Cannot find power supply \"%s\"\n",
desc->psy_fuel_gauge);
- ret = -ENODEV;
- goto err_chg_stat;
+ return -ENODEV;
}
if (desc->polling_interval_ms == 0 ||
msecs_to_jiffies(desc->polling_interval_ms) <= CM_JIFFIES_SMALL) {
dev_err(&pdev->dev, "polling_interval_ms is too small\n");
- ret = -EINVAL;
- goto err_chg_stat;
+ return -EINVAL;
}
if (!desc->temperature_out_of_range) {
dev_err(&pdev->dev, "there is no temperature_out_of_range\n");
- ret = -EINVAL;
- goto err_chg_stat;
+ return -EINVAL;
}
if (!desc->charging_max_duration_ms ||
@@ -1570,14 +1556,13 @@
cm->charger_psy.name = cm->psy_name_buf;
/* Allocate for psy properties because they may vary */
- cm->charger_psy.properties = kzalloc(sizeof(enum power_supply_property)
+ cm->charger_psy.properties = devm_kzalloc(&pdev->dev,
+ sizeof(enum power_supply_property)
* (ARRAY_SIZE(default_charger_props) +
- NUM_CHARGER_PSY_OPTIONAL),
- GFP_KERNEL);
- if (!cm->charger_psy.properties) {
- ret = -ENOMEM;
- goto err_chg_stat;
- }
+ NUM_CHARGER_PSY_OPTIONAL), GFP_KERNEL);
+ if (!cm->charger_psy.properties)
+ return -ENOMEM;
+
memcpy(cm->charger_psy.properties, default_charger_props,
sizeof(enum power_supply_property) *
ARRAY_SIZE(default_charger_props));
@@ -1614,7 +1599,7 @@
if (ret) {
dev_err(&pdev->dev, "Cannot register charger-manager with name \"%s\"\n",
cm->charger_psy.name);
- goto err_register;
+ return ret;
}
/* Register extcon device for charger cable */
@@ -1655,8 +1640,6 @@
charger = &desc->charger_regulators[i];
sysfs_remove_group(&cm->charger_psy.dev->kobj,
&charger->attr_g);
-
- kfree(charger->attr_g.name);
}
err_reg_extcon:
for (i = 0; i < desc->num_charger_regulators; i++) {
@@ -1674,16 +1657,7 @@
}
power_supply_unregister(&cm->charger_psy);
-err_register:
- kfree(cm->charger_psy.properties);
-err_chg_stat:
- kfree(cm->charger_stat);
-err_no_charger_stat:
-err_no_charger:
- kfree(cm->desc);
-err_alloc_desc:
- kfree(cm);
-err_alloc:
+
return ret;
}
@@ -1718,11 +1692,6 @@
try_charger_enable(cm, false);
- kfree(cm->charger_psy.properties);
- kfree(cm->charger_stat);
- kfree(cm->desc);
- kfree(cm);
-
return 0;
}