[PATCH 1/2] mfd: Convert wm831x core driver to devm_kzalloc()

[PATCH 1/2] mfd: Convert wm831x core driver to devm_kzalloc()

[Mark Brown]

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 drivers/mfd/wm831x-core.c |    2 --
 drivers/mfd/wm831x-i2c.c  |    3 +--
 drivers/mfd/wm831x-spi.c  |    3 +--
 3 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/mfd/wm831x-core.c b/drivers/mfd/wm831x-core.c
index 0a2b8d4..3b76189 100644
--- a/drivers/mfd/wm831x-core.c
+++ b/drivers/mfd/wm831x-core.c
@@ -1875,7 +1875,6 @@ err_irq:
 err_regmap:
 	mfd_remove_devices(wm831x->dev);
 	regmap_exit(wm831x->regmap);
-	kfree(wm831x);
 	return ret;
 }
 
@@ -1887,7 +1886,6 @@ void wm831x_device_exit(struct wm831x *wm831x)
 		free_irq(wm831x->irq_base + WM831X_IRQ_AUXADC_DATA, wm831x);
 	wm831x_irq_exit(wm831x);
 	regmap_exit(wm831x->regmap);
-	kfree(wm831x);
 }
 
 int wm831x_device_suspend(struct wm831x *wm831x)
diff --git a/drivers/mfd/wm831x-i2c.c b/drivers/mfd/wm831x-i2c.c
index ac8da1d..cb15609 100644
--- a/drivers/mfd/wm831x-i2c.c
+++ b/drivers/mfd/wm831x-i2c.c
@@ -30,7 +30,7 @@ static int wm831x_i2c_probe(struct i2c_client *i2c,
 	struct wm831x *wm831x;
 	int ret;
 
-	wm831x = kzalloc(sizeof(struct wm831x), GFP_KERNEL);
+	wm831x = devm_kzalloc(&i2c->dev, sizeof(struct wm831x), GFP_KERNEL);
 	if (wm831x == NULL)
 		return -ENOMEM;
 
@@ -42,7 +42,6 @@ static int wm831x_i2c_probe(struct i2c_client *i2c,
 		ret = PTR_ERR(wm831x->regmap);
 		dev_err(wm831x->dev, "Failed to allocate register map: %d\n",
 			ret);
-		kfree(wm831x);
 		return ret;
 	}
 
diff --git a/drivers/mfd/wm831x-spi.c b/drivers/mfd/wm831x-spi.c
index 8d6a9a9..a43cba3 100644
--- a/drivers/mfd/wm831x-spi.c
+++ b/drivers/mfd/wm831x-spi.c
@@ -30,7 +30,7 @@ static int __devinit wm831x_spi_probe(struct spi_device *spi)
 
 	type = (enum wm831x_parent)id->driver_data;
 
-	wm831x = kzalloc(sizeof(struct wm831x), GFP_KERNEL);
+	wm831x = devm_kzalloc(&spi->dev, sizeof(struct wm831x), GFP_KERNEL);
 	if (wm831x == NULL)
 		return -ENOMEM;
 
@@ -45,7 +45,6 @@ static int __devinit wm831x_spi_probe(struct spi_device *spi)
 		ret = PTR_ERR(wm831x->regmap);
 		dev_err(wm831x->dev, "Failed to allocate register map: %d\n",
 			ret);
-		kfree(wm831x);
 		return ret;
 	}
 
-- 
1.7.6.3

[PATCH 2/2] mfd: Convert wm8994 to devm_kzalloc()

[Mark Brown]

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 drivers/mfd/wm8994-core.c |   16 +++++-----------
 1 files changed, 5 insertions(+), 11 deletions(-)

diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index 61894fc..ff373dc 100644
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -402,9 +402,9 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq)
 		goto err_regmap;
 	}
 
-	wm8994->supplies = kzalloc(sizeof(struct regulator_bulk_data) *
-				   wm8994->num_supplies,
-				   GFP_KERNEL);
+	wm8994->supplies = devm_kzalloc(wm8994->dev,
+					sizeof(struct regulator_bulk_data) *
+					wm8994->num_supplies, GFP_KERNEL);
 	if (!wm8994->supplies) {
 		ret = -ENOMEM;
 		goto err_regmap;
@@ -432,7 +432,7 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq)
 				 wm8994->supplies);
 	if (ret != 0) {
 		dev_err(wm8994->dev, "Failed to get supplies: %d\n", ret);
-		goto err_supplies;
+		goto err_regmap;
 	}
 
 	ret = regulator_bulk_enable(wm8994->num_supplies,
@@ -560,12 +560,9 @@ err_enable:
 			       wm8994->supplies);
 err_get:
 	regulator_bulk_free(wm8994->num_supplies, wm8994->supplies);
-err_supplies:
-	kfree(wm8994->supplies);
 err_regmap:
 	regmap_exit(wm8994->regmap);
 	mfd_remove_devices(wm8994->dev);
-	kfree(wm8994);
 	return ret;
 }
 
@@ -577,9 +574,7 @@ static void wm8994_device_exit(struct wm8994 *wm8994)
 	regulator_bulk_disable(wm8994->num_supplies,
 			       wm8994->supplies);
 	regulator_bulk_free(wm8994->num_supplies, wm8994->supplies);
-	kfree(wm8994->supplies);
 	regmap_exit(wm8994->regmap);
-	kfree(wm8994);
 }
 
 static int wm8994_i2c_probe(struct i2c_client *i2c,
@@ -588,7 +583,7 @@ static int wm8994_i2c_probe(struct i2c_client *i2c,
 	struct wm8994 *wm8994;
 	int ret;
 
-	wm8994 = kzalloc(sizeof(struct wm8994), GFP_KERNEL);
+	wm8994 = devm_kzalloc(&i2c->dev, sizeof(struct wm8994), GFP_KERNEL);
 	if (wm8994 == NULL)
 		return -ENOMEM;
 
@@ -602,7 +597,6 @@ static int wm8994_i2c_probe(struct i2c_client *i2c,
 		ret = PTR_ERR(wm8994->regmap);
 		dev_err(wm8994->dev, "Failed to allocate register map: %d\n",
 			ret);
-		kfree(wm8994);
 		return ret;
 	}
 
-- 
1.7.6.3

Re: [PATCH 1/2] mfd: Convert wm831x core driver to devm_kzalloc()

[Samuel Ortiz]

Hi Mark,

On Tue, Oct 25, 2011 at 02:47:40PM +0200, Mark Brown wrote:
> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
> ---
>  drivers/mfd/wm831x-core.c |    2 --
>  drivers/mfd/wm831x-i2c.c  |    3 +--
>  drivers/mfd/wm831x-spi.c  |    3 +--
>  3 files changed, 2 insertions(+), 6 deletions(-)
Thanks, patch applied.

Cheers,
Samuel.

-- 
Intel Open Source Technology Centre
http://oss.intel.com/

Re: [PATCH 2/2] mfd: Convert wm8994 to devm_kzalloc()

[Samuel Ortiz]

Hi Mark,

On Tue, Oct 25, 2011 at 02:47:41PM +0200, Mark Brown wrote:
> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
> ---
>  drivers/mfd/wm8994-core.c |   16 +++++-----------
>  1 files changed, 5 insertions(+), 11 deletions(-)
Applied as well, thanks.

Cheers,
Samuel.

-- 
Intel Open Source Technology Centre
http://oss.intel.com/