1 files changed, 5 insertions, 40 deletions

diff --git a/drivers/input/misc/twl4030-vibra.c b/drivers/input/misc/twl4030-vibra.c
index 78eb6b3..68a5f33 100644
--- a/drivers/input/misc/twl4030-vibra.c
+++ b/drivers/input/misc/twl4030-vibra.c
@@ -43,7 +43,6 @@ struct vibra_info {
 	struct device		*dev;
 	struct input_dev	*input_dev;
 
-	struct workqueue_struct *workqueue;
 	struct work_struct	play_work;
 
 	bool			enabled;
@@ -143,19 +142,7 @@ static int vibra_play(struct input_dev *input, void *data,
 	if (!info->speed)
 		info->speed = effect->u.rumble.weak_magnitude >> 9;
 	info->direction = effect->direction < EFFECT_DIR_180_DEG ? 0 : 1;
-	queue_work(info->workqueue, &info->play_work);
-	return 0;
-}
-
-static int twl4030_vibra_open(struct input_dev *input)
-{
-	struct vibra_info *info = input_get_drvdata(input);
-
-	info->workqueue = create_singlethread_workqueue("vibra");
-	if (info->workqueue == NULL) {
-		dev_err(&input->dev, "couldn't create workqueue\n");
-		return -ENOMEM;
-	}
+	schedule_work(&info->play_work);
 	return 0;
 }
 
@@ -164,9 +151,6 @@ static void twl4030_vibra_close(struct input_dev *input)
 	struct vibra_info *info = input_get_drvdata(input);
 
 	cancel_work_sync(&info->play_work);
-	INIT_WORK(&info->play_work, vibra_play_work); /* cleanup */
-	destroy_workqueue(info->workqueue);
-	info->workqueue = NULL;
 
 	if (info->enabled)
 		vibra_disable(info);
@@ -219,7 +203,7 @@ static int twl4030_vibra_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	info = kzalloc(sizeof(*info), GFP_KERNEL);
+	info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
 
@@ -227,11 +211,10 @@ static int twl4030_vibra_probe(struct platform_device *pdev)
 	info->coexist = twl4030_vibra_check_coexist(pdata, twl4030_core_node);
 	INIT_WORK(&info->play_work, vibra_play_work);
 
-	info->input_dev = input_allocate_device();
+	info->input_dev = devm_input_allocate_device(&pdev->dev);
 	if (info->input_dev == NULL) {
 		dev_err(&pdev->dev, "couldn't allocate input device\n");
-		ret = -ENOMEM;
-		goto err_kzalloc;
+		return -ENOMEM;
 	}
 
 	input_set_drvdata(info->input_dev, info);
@@ -239,14 +222,13 @@ static int twl4030_vibra_probe(struct platform_device *pdev)
 	info->input_dev->name = "twl4030:vibrator";
 	info->input_dev->id.version = 1;
 	info->input_dev->dev.parent = pdev->dev.parent;
-	info->input_dev->open = twl4030_vibra_open;
 	info->input_dev->close = twl4030_vibra_close;
 	__set_bit(FF_RUMBLE, info->input_dev->ffbit);
 
 	ret = input_ff_create_memless(info->input_dev, NULL, vibra_play);
 	if (ret < 0) {
 		dev_dbg(&pdev->dev, "couldn't register vibrator to FF\n");
-		goto err_ialloc;
+		return ret;
 	}
 
 	ret = input_register_device(info->input_dev);
@@ -262,28 +244,11 @@ static int twl4030_vibra_probe(struct platform_device *pdev)
 
 err_iff:
 	input_ff_destroy(info->input_dev);
-err_ialloc:
-	input_free_device(info->input_dev);
-err_kzalloc:
-	kfree(info);
 	return ret;
 }
 
-static int twl4030_vibra_remove(struct platform_device *pdev)
-{
-	struct vibra_info *info = platform_get_drvdata(pdev);
-
-	/* this also free ff-memless and calls close if needed */
-	input_unregister_device(info->input_dev);
-	kfree(info);
-	platform_set_drvdata(pdev, NULL);
-
-	return 0;
-}
-
 static struct platform_driver twl4030_vibra_driver = {
 	.probe		= twl4030_vibra_probe,
-	.remove		= twl4030_vibra_remove,
 	.driver		= {
 		.name	= "twl4030-vibra",
 		.owner	= THIS_MODULE,