linux-kernel - [PATCH 1/3] charger-manager: Fix bug related to checking fully charged state of battery

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Date:	Thu, 22 Nov 2012 16:44:15 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	anton.vorontsov@...aro.org
Cc:	myungjoo.ham@...sung.com, kyungmin.park@...sung.com,
	linux-kernel@...r.kernel.org, Chanwoo Choi <cw00.choi@...sung.com>
Subject: [PATCH 1/3] charger-manager: Fix bug related to checking fully charged
 state of battery

This patch fix bug related to checking fully charged state of battery
when charger-manager call is_full_charged() function. After reading
property of charger/fuel-gauge through power_supply API, val.intval is
more than 1. So, is_full_charged() function always return true. If true,
battery means fully charged state.

Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@...sung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@...sung.com>
---
 drivers/power/charger-manager.c |   33 +++++++++++++--------------------
 1 files changed, 13 insertions(+), 20 deletions(-)

diff --git a/drivers/power/charger-manager.c b/drivers/power/charger-manager.c
index 8a0aca6..ee039b9 100644
--- a/drivers/power/charger-manager.c
+++ b/drivers/power/charger-manager.c
@@ -239,44 +239,37 @@ static bool is_full_charged(struct charger_manager *cm)
 	int uV;
 
 	/* If there is no battery, it cannot be charged */
-	if (!is_batt_present(cm)) {
-		val.intval = 0;
-		goto out;
-	}
+	if (!is_batt_present(cm))
+		return false;
 
 	if (cm->fuel_gauge && desc->fullbatt_full_capacity > 0) {
+		val.intval = 0;
+
 		/* Not full if capacity of fuel gauge isn't full */
 		ret = cm->fuel_gauge->get_property(cm->fuel_gauge,
 				POWER_SUPPLY_PROP_CHARGE_FULL, &val);
-		if (!ret && val.intval > desc->fullbatt_full_capacity) {
-			val.intval = 1;
-			goto out;
-		}
+		if (!ret && val.intval > desc->fullbatt_full_capacity)
+			return true;
 	}
 
 	/* 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) {
-			val.intval = 1;
-			goto out;
-		}
+		if (!ret && uV >= desc->fullbatt_uV)
+			return true;
 	}
 
 	/* Full, if the capacity is more than fullbatt_soc */
 	if (cm->fuel_gauge && desc->fullbatt_soc > 0) {
+		val.intval = 0;
+
 		ret = cm->fuel_gauge->get_property(cm->fuel_gauge,
 				POWER_SUPPLY_PROP_CAPACITY, &val);
-		if (!ret && val.intval >= desc->fullbatt_soc) {
-			val.intval = 1;
-			goto out;
-		}
+		if (!ret && val.intval >= desc->fullbatt_soc)
+			return true;
 	}
 
-	val.intval = 0;
-
-out:
-	return val.intval ? true : false;
+	return false;
 }
 
 /**
-- 
1.7.0.4

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