[PATCH 1/3] Input: wm831x-ts - Remove unneeded clearing of driver data

[PATCH 1/3] Input: wm831x-ts - Remove unneeded clearing of driver data

[Mark Brown]

This is unneeded, only a bound driver can use driver data and a driver
relying on the state prior to probe() is buggy.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 drivers/input/touchscreen/wm831x-ts.c |    1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/input/touchscreen/wm831x-ts.c b/drivers/input/touchscreen/wm831x-ts.c
index 4bc851a..d81482e 100644
--- a/drivers/input/touchscreen/wm831x-ts.c
+++ b/drivers/input/touchscreen/wm831x-ts.c
@@ -389,7 +389,6 @@ static __devexit int wm831x_ts_remove(struct platform_device *pdev)
 	input_unregister_device(wm831x_ts->input_dev);
 	kfree(wm831x_ts);
 
-	platform_set_drvdata(pdev, NULL);
 	return 0;
 }
 
-- 
1.7.10

[PATCH 2/3] Input: wm831x-ts - Convert to devm_kzalloc()

[Mark Brown]

Saves a little code and eliminates the possibility of introducing some
leaks.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 drivers/input/touchscreen/wm831x-ts.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/input/touchscreen/wm831x-ts.c b/drivers/input/touchscreen/wm831x-ts.c
index d81482e..e34c10a 100644
--- a/drivers/input/touchscreen/wm831x-ts.c
+++ b/drivers/input/touchscreen/wm831x-ts.c
@@ -245,7 +245,8 @@ static __devinit int wm831x_ts_probe(struct platform_device *pdev)
 	if (core_pdata)
 		pdata = core_pdata->touch;
 
-	wm831x_ts = kzalloc(sizeof(struct wm831x_ts), GFP_KERNEL);
+	wm831x_ts = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_ts),
+				 GFP_KERNEL);
 	input_dev = input_allocate_device();
 	if (!wm831x_ts || !input_dev) {
 		error = -ENOMEM;
@@ -375,7 +376,6 @@ err_data_irq:
 	free_irq(wm831x_ts->data_irq, wm831x_ts);
 err_alloc:
 	input_free_device(input_dev);
-	kfree(wm831x_ts);
 
 	return error;
 }
@@ -387,7 +387,6 @@ static __devexit int wm831x_ts_remove(struct platform_device *pdev)
 	free_irq(wm831x_ts->pd_irq, wm831x_ts);
 	free_irq(wm831x_ts->data_irq, wm831x_ts);
 	input_unregister_device(wm831x_ts->input_dev);
-	kfree(wm831x_ts);
 
 	return 0;
 }
-- 
1.7.10

[PATCH 3/3] Input: wm831x-on - Convert to devm_kzalloc()

[Mark Brown]

Saves a small amount of code and reduces the potential for leaks.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 drivers/input/misc/wm831x-on.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/input/misc/wm831x-on.c b/drivers/input/misc/wm831x-on.c
index 47f18d6..aee53fb 100644
--- a/drivers/input/misc/wm831x-on.c
+++ b/drivers/input/misc/wm831x-on.c
@@ -76,7 +76,8 @@ static int __devinit wm831x_on_probe(struct platform_device *pdev)
 	int irq = platform_get_irq(pdev, 0);
 	int ret;
 
-	wm831x_on = kzalloc(sizeof(struct wm831x_on), GFP_KERNEL);
+	wm831x_on = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_on),
+				 GFP_KERNEL);
 	if (!wm831x_on) {
 		dev_err(&pdev->dev, "Can't allocate data\n");
 		return -ENOMEM;
@@ -120,7 +121,6 @@ err_irq:
 err_input_dev:
 	input_free_device(wm831x_on->dev);
 err:
-	kfree(wm831x_on);
 	return ret;
 }
 
@@ -132,7 +132,6 @@ static int __devexit wm831x_on_remove(struct platform_device *pdev)
 	free_irq(irq, wm831x_on);
 	cancel_delayed_work_sync(&wm831x_on->work);
 	input_unregister_device(wm831x_on->dev);
-	kfree(wm831x_on);
 
 	return 0;
 }
-- 
1.7.10

[PATCH 1/3] Input: wm831x-ts - Remove unneeded clearing of driver data

[Mark Brown]

This is unneeded, only a bound driver can use driver data and a driver
relying on the state prior to probe() is buggy.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 drivers/input/touchscreen/wm831x-ts.c |    1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/input/touchscreen/wm831x-ts.c b/drivers/input/touchscreen/wm831x-ts.c
index 52abb98..bf0a4a6 100644
--- a/drivers/input/touchscreen/wm831x-ts.c
+++ b/drivers/input/touchscreen/wm831x-ts.c
@@ -390,7 +390,6 @@ static __devexit int wm831x_ts_remove(struct platform_device *pdev)
 	input_unregister_device(wm831x_ts->input_dev);
 	kfree(wm831x_ts);
 
-	platform_set_drvdata(pdev, NULL);
 	return 0;
 }
 
-- 
1.7.10.4

[PATCH 3/3] Input: wm831x-on - Convert to devm_kzalloc()

[Mark Brown]

Saves a small amount of code and reduces the potential for leaks.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 drivers/input/misc/wm831x-on.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/input/misc/wm831x-on.c b/drivers/input/misc/wm831x-on.c
index 6790a81..fa8b390 100644
--- a/drivers/input/misc/wm831x-on.c
+++ b/drivers/input/misc/wm831x-on.c
@@ -76,7 +76,8 @@ static int __devinit wm831x_on_probe(struct platform_device *pdev)
 	int irq = wm831x_irq(wm831x, platform_get_irq(pdev, 0));
 	int ret;
 
-	wm831x_on = kzalloc(sizeof(struct wm831x_on), GFP_KERNEL);
+	wm831x_on = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_on),
+				 GFP_KERNEL);
 	if (!wm831x_on) {
 		dev_err(&pdev->dev, "Can't allocate data\n");
 		return -ENOMEM;
@@ -120,7 +121,6 @@ err_irq:
 err_input_dev:
 	input_free_device(wm831x_on->dev);
 err:
-	kfree(wm831x_on);
 	return ret;
 }
 
@@ -132,7 +132,6 @@ static int __devexit wm831x_on_remove(struct platform_device *pdev)
 	free_irq(irq, wm831x_on);
 	cancel_delayed_work_sync(&wm831x_on->work);
 	input_unregister_device(wm831x_on->dev);
-	kfree(wm831x_on);
 
 	return 0;
 }
-- 
1.7.10.4