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path: root/drivers/acpi/battery.c
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Diffstat (limited to 'drivers/acpi/battery.c')
-rw-r--r--drivers/acpi/battery.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 24bf4dca88c..9810e2a55d0 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -557,7 +557,7 @@ 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 struct file_operations acpi_battery_info_ops = {
+static const struct file_operations acpi_battery_info_ops = {
.open = acpi_battery_info_open_fs,
.read = seq_read,
.llseek = seq_lseek,
@@ -565,7 +565,7 @@ static struct file_operations acpi_battery_info_ops = {
.owner = THIS_MODULE,
};
-static struct file_operations acpi_battery_state_ops = {
+static const struct file_operations acpi_battery_state_ops = {
.open = acpi_battery_state_open_fs,
.read = seq_read,
.llseek = seq_lseek,
@@ -573,7 +573,7 @@ static struct file_operations acpi_battery_state_ops = {
.owner = THIS_MODULE,
};
-static struct file_operations acpi_battery_alarm_ops = {
+static const struct file_operations acpi_battery_alarm_ops = {
.open = acpi_battery_alarm_open_fs,
.read = seq_read,
.write = acpi_battery_write_alarm,
@@ -757,6 +757,9 @@ static int __init acpi_battery_init(void)
{
int result;
+ if (acpi_disabled)
+ return -ENODEV;
+
acpi_battery_dir = acpi_lock_battery_dir();
if (!acpi_battery_dir)
return -ENODEV;