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>
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@ -25,9 +25,8 @@
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#include <linux/irq.h>
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#include <linux/irq.h>
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#include <linux/slab.h>
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#include <linux/slab.h>
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static DEFINE_MUTEX(bat_lock);
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static struct work_struct bat_work;
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static struct work_struct bat_work;
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static struct mutex work_lock;
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static DEFINE_MUTEX(work_lock);
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static int bat_status = POWER_SUPPLY_STATUS_UNKNOWN;
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static int bat_status = POWER_SUPPLY_STATUS_UNKNOWN;
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static enum power_supply_property *prop;
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static enum power_supply_property *prop;
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@ -181,8 +180,6 @@ static int __devinit wm97xx_bat_probe(struct platform_device *dev)
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if (dev->id != -1)
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if (dev->id != -1)
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return -EINVAL;
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return -EINVAL;
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mutex_init(&work_lock);
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if (!pdata) {
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if (!pdata) {
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dev_err(&dev->dev, "No platform_data supplied\n");
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dev_err(&dev->dev, "No platform_data supplied\n");
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return -EINVAL;
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return -EINVAL;
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