wm97xx_battery: Use DEFINE_MUTEX() for work_lock
work_lock can be initialized automatically with
DEFINE_MUTEX() rather than explicitly calling mutex_init().
This patch also removes an unused bat_lock mutex.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
diff --git a/drivers/power/wm97xx_battery.c b/drivers/power/wm97xx_battery.c
index 199818f..d2d4c08 100644
--- a/drivers/power/wm97xx_battery.c
+++ b/drivers/power/wm97xx_battery.c
@@ -25,9 +25,8 @@
#include <linux/irq.h>
#include <linux/slab.h>
-static DEFINE_MUTEX(bat_lock);
static struct work_struct bat_work;
-static struct mutex work_lock;
+static DEFINE_MUTEX(work_lock);
static int bat_status = POWER_SUPPLY_STATUS_UNKNOWN;
static enum power_supply_property *prop;
@@ -181,8 +180,6 @@
if (dev->id != -1)
return -EINVAL;
- mutex_init(&work_lock);
-
if (!pdata) {
dev_err(&dev->dev, "No platform_data supplied\n");
return -EINVAL;