2 files changed, 2 insertions, 21 deletions

diff --git a/drivers/power/ds2780_battery.c b/drivers/power/ds2780_battery.c
index de31cae1ba53..74fad941c56c 100644
--- a/drivers/power/ds2780_battery.c
+++ b/drivers/power/ds2780_battery.c
@@ -39,7 +39,6 @@ struct ds2780_device_info {
         struct device *dev;
         struct power_supply bat;
         struct device *w1_dev;
-        struct task_struct *mutex_holder;
 };
 
 enum current_types {
@@ -64,10 +63,7 @@ static inline struct power_supply *to_power_supply(struct device *dev)
 static inline int ds2780_battery_io(struct ds2780_device_info *dev_info,
         char *buf, int addr, size_t count, int io)
 {
-        if (dev_info->mutex_holder == current)
-                return w1_ds2780_io_nolock(dev_info->w1_dev, buf, addr, count, io);
-        else
-                return w1_ds2780_io(dev_info->w1_dev, buf, addr, count, io);
+        return w1_ds2780_io(dev_info->w1_dev, buf, addr, count, io);
 }
 
 static inline int ds2780_read8(struct ds2780_device_info *dev_info, u8 *val,
@@ -779,7 +775,6 @@ static int __devinit ds2780_battery_probe(struct platform_device *pdev)
         dev_info->bat.properties        = ds2780_battery_props;
         dev_info->bat.num_properties    = ARRAY_SIZE(ds2780_battery_props);
         dev_info->bat.get_property      = ds2780_battery_get_property;
-        dev_info->mutex_holder          = current;
 
         ret = power_supply_register(&pdev->dev, &dev_info->bat);
         if (ret) {
@@ -809,8 +804,6 @@ static int __devinit ds2780_battery_probe(struct platform_device *pdev)
                 goto fail_remove_bin_file;
         }
 
-        dev_info->mutex_holder = NULL;
-
         return 0;
 
 fail_remove_bin_file:
@@ -830,8 +823,6 @@ static int __devexit ds2780_battery_remove(struct platform_device *pdev)
 {
         struct ds2780_device_info *dev_info = platform_get_drvdata(pdev);
 
-        dev_info->mutex_holder = current;
-
         /* remove attributes */
         sysfs_remove_group(&dev_info->bat.dev->kobj, &ds2780_attr_group);
 
diff --git a/drivers/power/ds2781_battery.c b/drivers/power/ds2781_battery.c
index 975684a40f15..5f92a4bb33f9 100644
--- a/drivers/power/ds2781_battery.c
+++ b/drivers/power/ds2781_battery.c
@@ -37,7 +37,6 @@ struct ds2781_device_info {
         struct device *dev;
         struct power_supply bat;
         struct device *w1_dev;
-        struct task_struct *mutex_holder;
 };
 
 enum current_types {
@@ -62,11 +61,7 @@ static inline struct power_supply *to_power_supply(struct device *dev)
 static inline int ds2781_battery_io(struct ds2781_device_info *dev_info,
         char *buf, int addr, size_t count, int io)
 {
-        if (dev_info->mutex_holder == current)
-                return w1_ds2781_io_nolock(dev_info->w1_dev, buf, addr,
-                                count, io);
-        else
-                return w1_ds2781_io(dev_info->w1_dev, buf, addr, count, io);
+        return w1_ds2781_io(dev_info->w1_dev, buf, addr, count, io);
 }
 
 int w1_ds2781_read(struct ds2781_device_info *dev_info, char *buf,
@@ -775,7 +770,6 @@ static int __devinit ds2781_battery_probe(struct platform_device *pdev)
         dev_info->bat.properties        = ds2781_battery_props;
         dev_info->bat.num_properties    = ARRAY_SIZE(ds2781_battery_props);
         dev_info->bat.get_property      = ds2781_battery_get_property;
-        dev_info->mutex_holder          = current;
 
         ret = power_supply_register(&pdev->dev, &dev_info->bat);
         if (ret) {
@@ -805,8 +799,6 @@ static int __devinit ds2781_battery_probe(struct platform_device *pdev)
                 goto fail_remove_bin_file;
         }
 
-        dev_info->mutex_holder = NULL;
-
         return 0;
 
 fail_remove_bin_file:
@@ -826,8 +818,6 @@ static int __devexit ds2781_battery_remove(struct platform_device *pdev)
 {
         struct ds2781_device_info *dev_info = platform_get_drvdata(pdev);
 
-        dev_info->mutex_holder = current;
-
         /* remove attributes */
         sysfs_remove_group(&dev_info->bat.dev->kobj, &ds2781_attr_group);