The mutex does not seem to be needed. twl4030-vibra doesn't
use one either.
Signed-off-by: H. Nikolaus Schaller <hns@xxxxxxxxxxxxx>
---
drivers/input/misc/twl6040-vibra.c | 15 +--------------
1 file changed, 1 insertion(+), 14 deletions(-)
diff --git a/drivers/input/misc/twl6040-vibra.c b/drivers/input/misc/twl6040-vibra.c
index 69c5940..dcc926b 100644
--- a/drivers/input/misc/twl6040-vibra.c
+++ b/drivers/input/misc/twl6040-vibra.c
@@ -46,7 +46,7 @@ struct vibra_info {
struct device *dev;
struct input_dev *input_dev;
struct work_struct play_work;
- struct mutex mutex;
+
int irq;
bool enabled;
@@ -182,8 +182,6 @@ static void vibra_play_work(struct work_struct *work)
struct vibra_info *info = container_of(work,
struct vibra_info, play_work);
- mutex_lock(&info->mutex);
-
if (info->weak_speed || info->strong_speed) {
if (!info->enabled)
twl6040_vibra_enable(info);
@@ -192,7 +190,6 @@ static void vibra_play_work(struct work_struct *work)
} else if (info->enabled)
twl6040_vibra_disable(info);
- mutex_unlock(&info->mutex);
}
static int vibra_play(struct input_dev *input, void *data,
@@ -223,12 +220,8 @@ static void twl6040_vibra_close(struct input_dev *input)
cancel_work_sync(&info->play_work);
- mutex_lock(&info->mutex);
-
if (info->enabled)
twl6040_vibra_disable(info);
-
- mutex_unlock(&info->mutex);
}
static int __maybe_unused twl6040_vibra_suspend(struct device *dev)
@@ -236,13 +229,9 @@ static int __maybe_unused twl6040_vibra_suspend(struct device *dev)
struct platform_device *pdev = to_platform_device(dev);
struct vibra_info *info = platform_get_drvdata(pdev);
- mutex_lock(&info->mutex);
-
if (info->enabled)
twl6040_vibra_disable(info);
- mutex_unlock(&info->mutex);
-
return 0;
}
@@ -301,8 +290,6 @@ static int twl6040_vibra_probe(struct platform_device *pdev)
return -EINVAL;
}
- mutex_init(&info->mutex);
-
error = devm_request_threaded_irq(&pdev->dev, info->irq, NULL,
twl6040_vib_irq_handler,
IRQF_ONESHOT,
--
2.7.3
--
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