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authorLen Brown <len.brown@intel.com>2011-08-05 22:16:42 -0400
committerLen Brown <len.brown@intel.com>2011-08-05 22:16:42 -0400
commit5389102e231d5f06da8b2897336293db18af9d76 (patch)
tree39f7a1afe053ef8457f568cf4e1f9e960d1e6916 /drivers
parentde96355c111679dd6e2c5c73e25e814c72510c58 (diff)
parent69d94ec6d83d84044252d9ba03f6a8970816e350 (diff)
Merge branch 'battery' into release
Diffstat (limited to 'drivers')
-rw-r--r--drivers/acpi/battery.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 87c0a8daa99..7711d94a040 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -99,6 +99,7 @@ enum {
struct acpi_battery {
struct mutex lock;
+ struct mutex sysfs_lock;
struct power_supply bat;
struct acpi_device *device;
struct notifier_block pm_nb;
@@ -573,16 +574,16 @@ static int sysfs_add_battery(struct acpi_battery *battery)
static void sysfs_remove_battery(struct acpi_battery *battery)
{
- mutex_lock(&battery->lock);
+ mutex_lock(&battery->sysfs_lock);
if (!battery->bat.dev) {
- mutex_unlock(&battery->lock);
+ mutex_unlock(&battery->sysfs_lock);
return;
}
device_remove_file(battery->bat.dev, &alarm_attr);
power_supply_unregister(&battery->bat);
battery->bat.dev = NULL;
- mutex_unlock(&battery->lock);
+ mutex_unlock(&battery->sysfs_lock);
}
/*
@@ -982,6 +983,7 @@ static int acpi_battery_add(struct acpi_device *device)
strcpy(acpi_device_class(device), ACPI_BATTERY_CLASS);
device->driver_data = battery;
mutex_init(&battery->lock);
+ mutex_init(&battery->sysfs_lock);
if (ACPI_SUCCESS(acpi_get_handle(battery->device->handle,
"_BIX", &handle)))
set_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags);
@@ -1010,6 +1012,7 @@ static int acpi_battery_add(struct acpi_device *device)
fail:
sysfs_remove_battery(battery);
mutex_destroy(&battery->lock);
+ mutex_destroy(&battery->sysfs_lock);
kfree(battery);
return result;
}
@@ -1027,6 +1030,7 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
#endif
sysfs_remove_battery(battery);
mutex_destroy(&battery->lock);
+ mutex_destroy(&battery->sysfs_lock);
kfree(battery);
return 0;
}