ACPI: battery: syntax cleanup

In response to review comments from Andrew Morton

Signed-off-by: Alexey Starikovskiy <aystarik@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 172 insertions, 246 deletions

diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index b5df318978ed..cad932de383d 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -43,9 +43,6 @@
 #define ACPI_BATTERY_CLASS              "battery"
 #define ACPI_BATTERY_HID                "PNP0C0A"
 #define ACPI_BATTERY_DEVICE_NAME        "Battery"
-#define ACPI_BATTERY_FILE_INFO          "info"
-#define ACPI_BATTERY_FILE_STATE         "state"
-#define ACPI_BATTERY_FILE_ALARM         "alarm"
 #define ACPI_BATTERY_NOTIFY_STATUS      0x80
 #define ACPI_BATTERY_NOTIFY_INFO        0x81
 #define ACPI_BATTERY_UNITS_WATTS        "mW"
@@ -111,13 +108,18 @@ struct acpi_battery_info {
         acpi_string oem_info;
 };
 
+enum acpi_battery_files{
+        ACPI_BATTERY_INFO = 0,
+        ACPI_BATTERY_STATE,
+        ACPI_BATTERY_ALARM,
+        ACPI_BATTERY_NUMFILES,
+};
+
 struct acpi_battery_flags {
         u8 battery_present_prev;
         u8 alarm_present;
         u8 init_update;
-        u8 info_update;
-        u8 state_update;
-        u8 alarm_update;
+        u8 update[ACPI_BATTERY_NUMFILES];
         u8 power_unit;
 };
 
@@ -128,47 +130,37 @@ struct acpi_battery {
         struct acpi_buffer bif_data;
         struct acpi_buffer bst_data;
         unsigned long alarm;
-        unsigned long info_update_time;
-        unsigned long state_update_time;
-        unsigned long alarm_update_time;
+        unsigned long update_time[ACPI_BATTERY_NUMFILES];
 };
 
-#define acpi_battery_present(battery) battery->device->status.battery_present
-#define acpi_battery_present_prev(battery) battery->flags.battery_present_prev
-#define acpi_battery_alarm_present(battery) battery->flags.alarm_present
-#define acpi_battery_init_update_flag(battery) battery->flags.init_update
-#define acpi_battery_info_update_flag(battery) battery->flags.info_update
-#define acpi_battery_state_update_flag(battery) battery->flags.state_update
-#define acpi_battery_alarm_update_flag(battery) battery->flags.alarm_update
-#define acpi_battery_power_units(battery) battery->flags.power_unit ? \
-                ACPI_BATTERY_UNITS_AMPS : ACPI_BATTERY_UNITS_WATTS
-#define acpi_battery_handle(battery) battery->device->handle
-#define acpi_battery_inserted(battery) (!acpi_battery_present_prev(battery) & acpi_battery_present(battery))
-#define acpi_battery_removed(battery) (acpi_battery_present_prev(battery) & !acpi_battery_present(battery))
-#define acpi_battery_bid(battery) acpi_device_bid(battery->device)
-#define acpi_battery_status_str(battery) acpi_battery_present(battery) ? "present" : "absent"
-
-/* --------------------------------------------------------------------------
-                               Battery Management
-   -------------------------------------------------------------------------- */
-
-static void acpi_battery_mutex_lock(struct acpi_battery *battery)
+inline int acpi_battery_present(struct acpi_battery *battery)
 {
-        mutex_lock(&battery->mutex);
+        return battery->device->status.battery_present;
+}
+inline char *acpi_battery_power_units(struct acpi_battery *battery)
+{
+        if (battery->flags.power_unit)
+                return ACPI_BATTERY_UNITS_AMPS;
+        else
+                return ACPI_BATTERY_UNITS_WATTS;
 }
 
-static void acpi_battery_mutex_unlock(struct acpi_battery *battery)
+inline acpi_handle acpi_battery_handle(struct acpi_battery *battery)
 {
-        mutex_unlock(&battery->mutex);
+        return battery->device->handle;
 }
 
+/* --------------------------------------------------------------------------
+                               Battery Management
+   -------------------------------------------------------------------------- */
+
 static void acpi_battery_check_result(struct acpi_battery *battery, int result)
 {
         if (!battery)
                 return;
 
         if (result) {
-                acpi_battery_init_update_flag(battery) = 1;
+                battery->flags.init_update = 1;
         }
 }
 
@@ -189,9 +181,7 @@ static int acpi_battery_extract_package(struct acpi_battery *battery,
         }
 
         if (data_null.length != data->length) {
-                if (data->pointer) {
-                        kfree(data->pointer);
-                }
+                kfree(data->pointer);
                 data->pointer = kzalloc(data_null.length, GFP_KERNEL);
                 if (!data->pointer) {
                         ACPI_EXCEPTION((AE_INFO, AE_NO_MEMORY, "kzalloc()"));
@@ -234,12 +224,12 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
         struct acpi_buffer *data = NULL;
         struct acpi_battery_info *bif = NULL;
 
-        battery->info_update_time = get_seconds();
+        battery->update_time[ACPI_BATTERY_INFO] = get_seconds();
 
         if (!acpi_battery_present(battery))
                 return 0;
 
-        /* Evalute _BIF */
+        /* Evaluate _BIF */
 
         status =
             acpi_evaluate_object(acpi_battery_handle(battery), "_BIF", NULL,
@@ -263,9 +253,7 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
 
       end:
 
-        if (buffer.pointer) {
-                kfree(buffer.pointer);
-        }
+        kfree(buffer.pointer);
 
         if (!result) {
                 bif = data->pointer;
@@ -286,12 +274,12 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
         union acpi_object *package = NULL;
         struct acpi_buffer *data = NULL;
 
-        battery->state_update_time = get_seconds();
+        battery->update_time[ACPI_BATTERY_STATE] = get_seconds();
 
         if (!acpi_battery_present(battery))
                 return 0;
 
-        /* Evalute _BST */
+        /* Evaluate _BST */
 
         status =
             acpi_evaluate_object(acpi_battery_handle(battery), "_BST", NULL,
@@ -314,16 +302,14 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
                 goto end;
 
       end:
-        if (buffer.pointer) {
-                kfree(buffer.pointer);
-        }
+        kfree(buffer.pointer);
 
         return result;
 }
 
 static int acpi_battery_get_alarm(struct acpi_battery *battery)
 {
-        battery->alarm_update_time = get_seconds();
+        battery->update_time[ACPI_BATTERY_ALARM] = get_seconds();
 
         return 0;
 }
@@ -335,12 +321,12 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery,
         union acpi_object arg0 = { ACPI_TYPE_INTEGER };
         struct acpi_object_list arg_list = { 1, &arg0 };
 
-        battery->alarm_update_time = get_seconds();
+        battery->update_time[ACPI_BATTERY_ALARM] = get_seconds();
 
         if (!acpi_battery_present(battery))
                 return -ENODEV;
 
-        if (!acpi_battery_alarm_present(battery))
+        if (!battery->flags.alarm_present)
                 return -ENODEV;
 
         arg0.integer.value = alarm;
@@ -370,7 +356,7 @@ static int acpi_battery_init_alarm(struct acpi_battery *battery)
 
         status = acpi_get_handle(acpi_battery_handle(battery), "_BTP", &handle);
         if (ACPI_SUCCESS(status)) {
-                acpi_battery_alarm_present(battery) = 1;
+                battery->flags.alarm_present = 1;
                 if (!alarm && bif) {
                         alarm = bif->design_capacity_warning;
                 }
@@ -378,7 +364,7 @@ static int acpi_battery_init_alarm(struct acpi_battery *battery)
                 if (result)
                         goto end;
         } else {
-                acpi_battery_alarm_present(battery) = 0;
+                battery->flags.alarm_present = 0;
         }
 
       end:
@@ -394,7 +380,7 @@ static int acpi_battery_init_update(struct acpi_battery *battery)
         if (result)
                 return result;
 
-        acpi_battery_present_prev(battery) = acpi_battery_present(battery);
+        battery->flags.battery_present_prev = acpi_battery_present(battery);
 
         if (acpi_battery_present(battery)) {
                 result = acpi_battery_get_info(battery);
@@ -420,20 +406,20 @@ static int acpi_battery_update(struct acpi_battery *battery,
                 update = 1;
         }
 
-        if (acpi_battery_init_update_flag(battery)) {
+        if (battery->flags.init_update) {
                 result = acpi_battery_init_update(battery);
                 if (result)
-                        goto end;;
+                        goto end;
                 update_result = ACPI_BATTERY_INIT_UPDATE;
         } else if (update) {
                 result = acpi_battery_get_status(battery);
                 if (result)
-                        goto end;;
-                if (acpi_battery_inserted(battery)
-                    || acpi_battery_removed(battery)) {
+                        goto end;
+                if ((!battery->flags.battery_present_prev & acpi_battery_present(battery))
+                    || (battery->flags.battery_present_prev & !acpi_battery_present(battery))) {
                         result = acpi_battery_init_update(battery);
                         if (result)
-                                goto end;;
+                                goto end;
                         update_result = ACPI_BATTERY_INIT_UPDATE;
                 } else {
                         update_result = ACPI_BATTERY_EASY_UPDATE;
@@ -442,7 +428,7 @@ static int acpi_battery_update(struct acpi_battery *battery,
 
       end:
 
-        acpi_battery_init_update_flag(battery) = (result != 0);
+        battery->flags.init_update = (result != 0);
 
         *update_result_ptr = update_result;
 
@@ -453,16 +439,19 @@ static void acpi_battery_notify_update(struct acpi_battery *battery)
 {
         acpi_battery_get_status(battery);
 
-        if (acpi_battery_init_update_flag(battery)) {
+        if (battery->flags.init_update) {
                 return;
         }
 
-        if (acpi_battery_inserted(battery) || acpi_battery_removed(battery)) {
-                acpi_battery_init_update_flag(battery) = 1;
+        if ((!battery->flags.battery_present_prev &
+             acpi_battery_present(battery)) ||
+            (battery->flags.battery_present_prev &
+             !acpi_battery_present(battery))) {
+                battery->flags.init_update = 1;
         } else {
-                acpi_battery_info_update_flag(battery) = 1;
-                acpi_battery_state_update_flag(battery) = 1;
-                acpi_battery_alarm_update_flag(battery) = 1;
+                battery->flags.update[ACPI_BATTERY_INFO] = 1;
+                battery->flags.update[ACPI_BATTERY_STATE] = 1;
+                battery->flags.update[ACPI_BATTERY_ALARM] = 1;
         }
 }
 
@@ -472,7 +461,7 @@ static void acpi_battery_notify_update(struct acpi_battery *battery)
 
 static struct proc_dir_entry *acpi_battery_dir;
 
-static int acpi_battery_read_info_print(struct seq_file *seq, int result)
+static int acpi_battery_print_info(struct seq_file *seq, int result)
 {
         struct acpi_battery *battery = seq->private;
         struct acpi_battery_info *bif = NULL;
@@ -549,49 +538,7 @@ static int acpi_battery_read_info_print(struct seq_file *seq, int result)
         return result;
 }
 
-static int acpi_battery_read_info(struct seq_file *seq, void *offset)
-{
-        struct acpi_battery *battery = seq->private;
-        int result = 0;
-        int update_result = ACPI_BATTERY_NONE_UPDATE;
-        int update = 0;
-
-        acpi_battery_mutex_lock(battery);
-
-        update = (get_seconds() - battery->info_update_time >= update_time);
-        update = (update | acpi_battery_info_update_flag(battery));
-
-        result = acpi_battery_update(battery, update, &update_result);
-        if (result)
-                goto end;
-
-        /* Battery Info (_BIF) */
-
-        if (update_result == ACPI_BATTERY_EASY_UPDATE) {
-                result = acpi_battery_get_info(battery);
-                if (result)
-                        goto end;
-        }
-
-      end:
-
-        result = acpi_battery_read_info_print(seq, result);
-
-        acpi_battery_check_result(battery, result);
-
-        acpi_battery_info_update_flag(battery) = result;
-
-        acpi_battery_mutex_unlock(battery);
-
-        return result;
-}
-
-static int acpi_battery_info_open_fs(struct inode *inode, struct file *file)
-{
-        return single_open(file, acpi_battery_read_info, PDE(inode)->data);
-}
-
-static int acpi_battery_read_state_print(struct seq_file *seq, int result)
+static int acpi_battery_print_state(struct seq_file *seq, int result)
 {
         struct acpi_battery *battery = seq->private;
         struct acpi_battery_state *bst = NULL;
@@ -661,49 +608,7 @@ static int acpi_battery_read_state_print(struct seq_file *seq, int result)
         return result;
 }
 
-static int acpi_battery_read_state(struct seq_file *seq, void *offset)
-{
-        struct acpi_battery *battery = seq->private;
-        int result = 0;
-        int update_result = ACPI_BATTERY_NONE_UPDATE;
-        int update = 0;
-
-        acpi_battery_mutex_lock(battery);
-
-        update = (get_seconds() - battery->state_update_time >= update_time);
-        update = (update | acpi_battery_state_update_flag(battery));
-
-        result = acpi_battery_update(battery, update, &update_result);
-        if (result)
-                goto end;
-
-        /* Battery State (_BST) */
-
-        if (update_result == ACPI_BATTERY_EASY_UPDATE) {
-                result = acpi_battery_get_state(battery);
-                if (result)
-                        goto end;
-        }
-
-      end:
-
-        result = acpi_battery_read_state_print(seq, result);
-
-        acpi_battery_check_result(battery, result);
-
-        acpi_battery_state_update_flag(battery) = result;
-
-        acpi_battery_mutex_unlock(battery);
-
-        return result;
-}
-
-static int acpi_battery_state_open_fs(struct inode *inode, struct file *file)
-{
-        return single_open(file, acpi_battery_read_state, PDE(inode)->data);
-}
-
-static int acpi_battery_read_alarm_print(struct seq_file *seq, int result)
+static int acpi_battery_print_alarm(struct seq_file *seq, int result)
 {
         struct acpi_battery *battery = seq->private;
         char *units = "?";
@@ -734,43 +639,6 @@ static int acpi_battery_read_alarm_print(struct seq_file *seq, int result)
         return result;
 }
 
-static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)
-{
-        struct acpi_battery *battery = seq->private;
-        int result = 0;
-        int update_result = ACPI_BATTERY_NONE_UPDATE;
-        int update = 0;
-
-        acpi_battery_mutex_lock(battery);
-
-        update = (get_seconds() - battery->alarm_update_time >= update_time);
-        update = (update | acpi_battery_alarm_update_flag(battery));
-
-        result = acpi_battery_update(battery, update, &update_result);
-        if (result)
-                goto end;
-
-        /* Battery Alarm */
-
-        if (update_result == ACPI_BATTERY_EASY_UPDATE) {
-                result = acpi_battery_get_alarm(battery);
-                if (result)
-                        goto end;
-        }
-
-      end:
-
-        result = acpi_battery_read_alarm_print(seq, result);
-
-        acpi_battery_check_result(battery, result);
-
-        acpi_battery_alarm_update_flag(battery) = result;
-
-        acpi_battery_mutex_unlock(battery);
-
-        return result;
-}
-
 static ssize_t
 acpi_battery_write_alarm(struct file *file,
                          const char __user * buffer,
@@ -785,7 +653,7 @@ acpi_battery_write_alarm(struct file *file,
         if (!battery || (count > sizeof(alarm_string) - 1))
                 return -EINVAL;
 
-        acpi_battery_mutex_lock(battery);
+        mutex_lock(&battery->mutex);
 
         result = acpi_battery_update(battery, 1, &update_result);
         if (result) {
@@ -817,44 +685,128 @@ acpi_battery_write_alarm(struct file *file,
         if (!result)
                 result = count;
 
-        acpi_battery_mutex_unlock(battery);
+        mutex_unlock(&battery->mutex);
+
+        return result;
+}
+
+typedef int(*print_func)(struct seq_file *seq, int result);
+typedef int(*get_func)(struct acpi_battery *battery);
+
+static struct acpi_read_mux {
+        print_func print;
+        get_func get;
+} acpi_read_funcs[ACPI_BATTERY_NUMFILES] = {
+        {.get = acpi_battery_get_info, .print = acpi_battery_print_info},
+        {.get = acpi_battery_get_state, .print = acpi_battery_print_state},
+        {.get = acpi_battery_get_alarm, .print = acpi_battery_print_alarm},
+};
 
+static int acpi_battery_read(int fid, struct seq_file *seq)
+{
+        struct acpi_battery *battery = seq->private;
+        int result = 0;
+        int update_result = ACPI_BATTERY_NONE_UPDATE;
+        int update = 0;
+
+        mutex_lock(&battery->mutex);
+
+        update = (get_seconds() - battery->update_time[fid] >= update_time);
+        update = (update | battery->flags.update[fid]);
+
+        result = acpi_battery_update(battery, update, &update_result);
+        if (result)
+                goto end;
+
+        if (update_result == ACPI_BATTERY_EASY_UPDATE) {
+                result = acpi_read_funcs[fid].get(battery);
+                if (result)
+                        goto end;
+        }
+
+      end:
+        result = acpi_read_funcs[fid].print(seq, result);
+        acpi_battery_check_result(battery, result);
+        battery->flags.update[fid] = result;
+        mutex_unlock(&battery->mutex);
         return result;
 }
 
+static int acpi_battery_read_info(struct seq_file *seq, void *offset)
+{
+        return acpi_battery_read(ACPI_BATTERY_INFO, seq);
+}
+
+static int acpi_battery_read_state(struct seq_file *seq, void *offset)
+{
+        return acpi_battery_read(ACPI_BATTERY_STATE, seq);
+}
+
+static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)
+{
+        return acpi_battery_read(ACPI_BATTERY_ALARM, seq);
+}
+
+static int acpi_battery_info_open_fs(struct inode *inode, struct file *file)
+{
+        return single_open(file, acpi_battery_read_info, PDE(inode)->data);
+}
+
+static int acpi_battery_state_open_fs(struct inode *inode, struct file *file)
+{
+        return single_open(file, acpi_battery_read_state, PDE(inode)->data);
+}
+
 static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file)
 {
         return single_open(file, acpi_battery_read_alarm, PDE(inode)->data);
 }
 
-static const struct file_operations acpi_battery_info_ops = {
+static struct battery_file {
+        struct file_operations ops;
+        mode_t mode;
+        char *name;
+} acpi_battery_file[] = {
+        {
+        .name = "info",
+        .mode = S_IRUGO,
+        .ops = {
         .open = acpi_battery_info_open_fs,
         .read = seq_read,
         .llseek = seq_lseek,
         .release = single_release,
         .owner = THIS_MODULE,
-};
-
-static const struct file_operations acpi_battery_state_ops = {
+        },
+        },
+        {
+        .name = "state",
+        .mode = S_IRUGO,
+        .ops = {
         .open = acpi_battery_state_open_fs,
         .read = seq_read,
         .llseek = seq_lseek,
         .release = single_release,
         .owner = THIS_MODULE,
-};
-
-static const struct file_operations acpi_battery_alarm_ops = {
+        },
+        },
+        {
+        .name = "alarm",
+        .mode = S_IFREG | S_IRUGO | S_IWUSR,
+        .ops = {
         .open = acpi_battery_alarm_open_fs,
         .read = seq_read,
         .write = acpi_battery_write_alarm,
         .llseek = seq_lseek,
         .release = single_release,
         .owner = THIS_MODULE,
+        },
+        },
 };
 
 static int acpi_battery_add_fs(struct acpi_device *device)
 {
         struct proc_dir_entry *entry = NULL;
+        int i;
 
         if (!acpi_device_dir(device)) {
                 acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
@@ -864,38 +816,16 @@ static int acpi_battery_add_fs(struct acpi_device *device)
                 acpi_device_dir(device)->owner = THIS_MODULE;
         }
 
-        /* 'info' [R] */
-        entry = create_proc_entry(ACPI_BATTERY_FILE_INFO,
-                                  S_IRUGO, acpi_device_dir(device));
-        if (!entry)
-                return -ENODEV;
-        else {
-                entry->proc_fops = &acpi_battery_info_ops;
-                entry->data = acpi_driver_data(device);
-                entry->owner = THIS_MODULE;
-        }
-
-        /* 'status' [R] */
-        entry = create_proc_entry(ACPI_BATTERY_FILE_STATE,
-                                  S_IRUGO, acpi_device_dir(device));
-        if (!entry)
-                return -ENODEV;
-        else {
-                entry->proc_fops = &acpi_battery_state_ops;
-                entry->data = acpi_driver_data(device);
-                entry->owner = THIS_MODULE;
-        }
-
-        /* 'alarm' [R/W] */
-        entry = create_proc_entry(ACPI_BATTERY_FILE_ALARM,
-                                  S_IFREG | S_IRUGO | S_IWUSR,
-                                  acpi_device_dir(device));
-        if (!entry)
-                return -ENODEV;
-        else {
-                entry->proc_fops = &acpi_battery_alarm_ops;
-                entry->data = acpi_driver_data(device);
-                entry->owner = THIS_MODULE;
+        for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i) {
+                entry = create_proc_entry(acpi_battery_file[i].name,
+                                  acpi_battery_file[i].mode, acpi_device_dir(device));
+                if (!entry)
+                        return -ENODEV;
+                else {
+                        entry->proc_fops = &acpi_battery_file[i].ops;
+                        entry->data = acpi_driver_data(device);
+                        entry->owner = THIS_MODULE;
+                }
         }
 
         return 0;
@@ -903,14 +833,12 @@ static int acpi_battery_add_fs(struct acpi_device *device)
 
 static int acpi_battery_remove_fs(struct acpi_device *device)
 {
+        int i;
         if (acpi_device_dir(device)) {
-                remove_proc_entry(ACPI_BATTERY_FILE_ALARM,
-                                  acpi_device_dir(device));
-                remove_proc_entry(ACPI_BATTERY_FILE_STATE,
-                                  acpi_device_dir(device));
-                remove_proc_entry(ACPI_BATTERY_FILE_INFO,
+                for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i) {
+                        remove_proc_entry(acpi_battery_file[i].name,
                                   acpi_device_dir(device));
-
+                }
                 remove_proc_entry(acpi_device_bid(device), acpi_battery_dir);
                 acpi_device_dir(device) = NULL;
         }
@@ -966,7 +894,7 @@ static int acpi_battery_add(struct acpi_device *device)
 
         mutex_init(&battery->mutex);
 
-        acpi_battery_mutex_lock(battery);
+        mutex_lock(&battery->mutex);
 
         battery->device = device;
         strcpy(acpi_device_name(device), ACPI_BATTERY_DEVICE_NAME);
@@ -977,7 +905,7 @@ static int acpi_battery_add(struct acpi_device *device)
         if (result)
                 goto end;
 
-        acpi_battery_init_update_flag(battery) = 1;
+        battery->flags.init_update = 1;
 
         result = acpi_battery_add_fs(device);
         if (result)
@@ -1003,7 +931,7 @@ static int acpi_battery_add(struct acpi_device *device)
                 kfree(battery);
         }
 
-        acpi_battery_mutex_unlock(battery);
+        mutex_unlock(&battery->mutex);
 
         return result;
 }
@@ -1018,7 +946,7 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
 
         battery = acpi_driver_data(device);
 
-        acpi_battery_mutex_lock(battery);
+        mutex_lock(&battery->mutex);
 
         status = acpi_remove_notify_handler(device->handle,
                                             ACPI_ALL_NOTIFY,
@@ -1026,13 +954,11 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
 
         acpi_battery_remove_fs(device);
 
-        if (battery->bif_data.pointer)
-                kfree(battery->bif_data.pointer);
+        kfree(battery->bif_data.pointer);
 
-        if (battery->bst_data.pointer)
-                kfree(battery->bst_data.pointer);
+        kfree(battery->bst_data.pointer);
 
-        acpi_battery_mutex_unlock(battery);
+        mutex_unlock(&battery->mutex);
 
         mutex_destroy(&battery->mutex);
 
@@ -1051,7 +977,7 @@ static int acpi_battery_resume(struct acpi_device *device)
 
         battery = device->driver_data;
 
-        acpi_battery_init_update_flag(battery) = 1;
+        battery->flags.init_update = 1;
 
         return 0;
 }