From b43eb35abfdeb4a999f8214ae25f2556227eb030 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Thu, 12 Mar 2015 08:44:14 +0100 Subject: [PATCH] power_supply: charger-manager: Decrement the power supply's device reference counter Use power_supply_put() to decrement the power supply's device reference counter. Signed-off-by: Krzysztof Kozlowski Acked-by: Pavel Machek Reviewed-by: Bartlomiej Zolnierkiewicz Reviewed-by: Sebastian Reichel Signed-off-by: Sebastian Reichel --- drivers/power/charger-manager.c | 70 +++++++++++++++++++++++++++-------------- 1 file changed, 47 insertions(+), 23 deletions(-) diff --git a/drivers/power/charger-manager.c b/drivers/power/charger-manager.c index 5c47409..e23b7ba 100644 --- a/drivers/power/charger-manager.c +++ b/drivers/power/charger-manager.c @@ -107,6 +107,7 @@ static bool is_batt_present(struct charger_manager *cm) &val); if (ret == 0 && val.intval) present = true; + power_supply_put(psy); break; case CM_CHARGER_STAT: for (i = 0; cm->desc->psy_charger_stat[i]; i++) { @@ -120,6 +121,7 @@ static bool is_batt_present(struct charger_manager *cm) ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_PRESENT, &val); + power_supply_put(psy); if (ret == 0 && val.intval) { present = true; break; @@ -157,6 +159,7 @@ static bool is_ext_pwr_online(struct charger_manager *cm) ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_ONLINE, &val); + power_supply_put(psy); if (ret == 0 && val.intval) { online = true; break; @@ -186,6 +189,7 @@ static int get_batt_uV(struct charger_manager *cm, int *uV) ret = power_supply_get_property(fuel_gauge, POWER_SUPPLY_PROP_VOLTAGE_NOW, &val); + power_supply_put(fuel_gauge); if (ret) return ret; @@ -229,10 +233,13 @@ static bool is_charging(struct charger_manager *cm) if (ret) { dev_warn(cm->dev, "Cannot read ONLINE value from %s\n", cm->desc->psy_charger_stat[i]); + power_supply_put(psy); continue; } - if (val.intval == 0) + if (val.intval == 0) { + power_supply_put(psy); continue; + } /* * 3. The charger should not be FULL, DISCHARGING, @@ -240,6 +247,7 @@ static bool is_charging(struct charger_manager *cm) */ ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_STATUS, &val); + power_supply_put(psy); if (ret) { dev_warn(cm->dev, "Cannot read STATUS value from %s\n", cm->desc->psy_charger_stat[i]); @@ -267,6 +275,7 @@ static bool is_full_charged(struct charger_manager *cm) struct charger_desc *desc = cm->desc; union power_supply_propval val; struct power_supply *fuel_gauge; + bool is_full = false; int ret = 0; int uV; @@ -284,15 +293,19 @@ static bool is_full_charged(struct charger_manager *cm) /* Not full if capacity of fuel gauge isn't full */ ret = power_supply_get_property(fuel_gauge, POWER_SUPPLY_PROP_CHARGE_FULL, &val); - if (!ret && val.intval > desc->fullbatt_full_capacity) - return true; + if (!ret && val.intval > desc->fullbatt_full_capacity) { + is_full = true; + goto out; + } } /* Full, if it's over the fullbatt voltage */ if (desc->fullbatt_uV > 0) { ret = get_batt_uV(cm, &uV); - if (!ret && uV >= desc->fullbatt_uV) - return true; + if (!ret && uV >= desc->fullbatt_uV) { + is_full = true; + goto out; + } } /* Full, if the capacity is more than fullbatt_soc */ @@ -301,11 +314,15 @@ static bool is_full_charged(struct charger_manager *cm) ret = power_supply_get_property(fuel_gauge, POWER_SUPPLY_PROP_CAPACITY, &val); - if (!ret && val.intval >= desc->fullbatt_soc) - return true; + if (!ret && val.intval >= desc->fullbatt_soc) { + is_full = true; + goto out; + } } - return false; +out: + power_supply_put(fuel_gauge); + return is_full; } /** @@ -578,14 +595,18 @@ static int cm_get_battery_temperature_by_psy(struct charger_manager *cm, int *temp) { struct power_supply *fuel_gauge; + int ret; fuel_gauge = power_supply_get_by_name(cm->desc->psy_fuel_gauge); if (!fuel_gauge) return -ENODEV; - return power_supply_get_property(fuel_gauge, + ret = power_supply_get_property(fuel_gauge, POWER_SUPPLY_PROP_TEMP, (union power_supply_propval *)temp); + power_supply_put(fuel_gauge); + + return ret; } static int cm_get_battery_temperature(struct charger_manager *cm, @@ -866,7 +887,7 @@ static int charger_get_property(struct power_supply *psy, { struct charger_manager *cm = power_supply_get_drvdata(psy); struct charger_desc *desc = cm->desc; - struct power_supply *fuel_gauge; + struct power_supply *fuel_gauge = NULL; int ret = 0; int uV; @@ -909,18 +930,18 @@ static int charger_get_property(struct power_supply *psy, case POWER_SUPPLY_PROP_TEMP_AMBIENT: return cm_get_battery_temperature(cm, &val->intval); case POWER_SUPPLY_PROP_CAPACITY: - fuel_gauge = power_supply_get_by_name(cm->desc->psy_fuel_gauge); - if (!fuel_gauge) { - ret = -ENODEV; - break; - } - if (!is_batt_present(cm)) { /* There is no battery. Assume 100% */ val->intval = 100; break; } + fuel_gauge = power_supply_get_by_name(cm->desc->psy_fuel_gauge); + if (!fuel_gauge) { + ret = -ENODEV; + break; + } + ret = power_supply_get_property(fuel_gauge, POWER_SUPPLY_PROP_CAPACITY, val); if (ret) @@ -995,6 +1016,8 @@ static int charger_get_property(struct power_supply *psy, default: return -EINVAL; } + if (fuel_gauge) + power_supply_put(fuel_gauge); return ret; } @@ -1676,13 +1699,7 @@ static int charger_manager_probe(struct platform_device *pdev) desc->psy_charger_stat[i]); return -ENODEV; } - } - - fuel_gauge = power_supply_get_by_name(desc->psy_fuel_gauge); - if (!fuel_gauge) { - dev_err(&pdev->dev, "Cannot find power supply \"%s\"\n", - desc->psy_fuel_gauge); - return -ENODEV; + power_supply_put(psy); } if (desc->polling_interval_ms == 0 || @@ -1722,6 +1739,12 @@ static int charger_manager_probe(struct platform_device *pdev) cm->charger_psy_desc.num_properties = psy_default.num_properties; /* Find which optional psy-properties are available */ + fuel_gauge = power_supply_get_by_name(desc->psy_fuel_gauge); + if (!fuel_gauge) { + dev_err(&pdev->dev, "Cannot find power supply \"%s\"\n", + desc->psy_fuel_gauge); + return -ENODEV; + } if (!power_supply_get_property(fuel_gauge, POWER_SUPPLY_PROP_CHARGE_NOW, &val)) { cm->charger_psy_desc.properties[cm->charger_psy_desc.num_properties] = @@ -1741,6 +1764,7 @@ static int charger_manager_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Failed to initialize thermal data\n"); cm->desc->measure_battery_temp = false; } + power_supply_put(fuel_gauge); INIT_DELAYED_WORK(&cm->fullbatt_vchk_work, fullbatt_vchk); -- 2.7.4