[PATCH] sound: remove driver_data direct access of struct device

[PATCH] sound: remove driver_data direct access of struct device

[Greg Kroah-Hartman]

From: Greg Kroah-Hartman <gregkh@suse.de>

In the near future, the driver core is going to not allow direct access
to the driver_data pointer in struct device.  Instead, the functions
dev_get_drvdata() and dev_set_drvdata() should be used.  These functions
have been around since the beginning, so are backwards compatible with
all older kernel versions.

Cc: Takashi Iwai <tiwai@suse.de>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: linuxppc-dev@ozlabs.org
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Timur Tabi <timur@freescale.com>
CC: Ian Molton <ian@mnementh.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 sound/aoa/fabrics/layout.c       |    8 ++++----
 sound/aoa/soundbus/i2sbus/core.c |    8 ++++----
 sound/soc/codecs/wm8400.c        |    4 ++--
 sound/soc/codecs/wm8731.c        |    4 ++--
 sound/soc/codecs/wm8753.c        |    4 ++--
 5 files changed, 14 insertions(+), 14 deletions(-)

--- a/sound/aoa/fabrics/layout.c
+++ b/sound/aoa/fabrics/layout.c
@@ -1037,7 +1037,7 @@ static int aoa_fabric_layout_probe(struc
 	}
 	ldev->selfptr_headphone.ptr = ldev;
 	ldev->selfptr_lineout.ptr = ldev;
-	sdev->ofdev.dev.driver_data = ldev;
+	dev_set_drvdata(&sdev->ofdev.dev, ldev);
 	list_add(&ldev->list, &layouts_list);
 	layouts_list_items++;
 
@@ -1081,7 +1081,7 @@ static int aoa_fabric_layout_probe(struc
 
 static int aoa_fabric_layout_remove(struct soundbus_dev *sdev)
 {
-	struct layout_dev *ldev = sdev->ofdev.dev.driver_data;
+	struct layout_dev *ldev = dev_get_drvdata(&sdev->ofdev.dev);
 	int i;
 
 	for (i=0; i<MAX_CODECS_PER_BUS; i++) {
@@ -1114,7 +1114,7 @@ static int aoa_fabric_layout_remove(stru
 #ifdef CONFIG_PM
 static int aoa_fabric_layout_suspend(struct soundbus_dev *sdev, pm_message_t state)
 {
-	struct layout_dev *ldev = sdev->ofdev.dev.driver_data;
+	struct layout_dev *ldev = dev_get_drvdata(&sdev->ofdev.dev);
 
 	if (ldev->gpio.methods && ldev->gpio.methods->all_amps_off)
 		ldev->gpio.methods->all_amps_off(&ldev->gpio);
@@ -1124,7 +1124,7 @@ static int aoa_fabric_layout_suspend(str
 
 static int aoa_fabric_layout_resume(struct soundbus_dev *sdev)
 {
-	struct layout_dev *ldev = sdev->ofdev.dev.driver_data;
+	struct layout_dev *ldev = dev_get_drvdata(&sdev->ofdev.dev);
 
 	if (ldev->gpio.methods && ldev->gpio.methods->all_amps_off)
 		ldev->gpio.methods->all_amps_restore(&ldev->gpio);
--- a/sound/aoa/soundbus/i2sbus/core.c
+++ b/sound/aoa/soundbus/i2sbus/core.c
@@ -358,14 +358,14 @@ static int i2sbus_probe(struct macio_dev
 		return -ENODEV;
 	}
 
-	dev->ofdev.dev.driver_data = control;
+	dev_set_drvdata(&dev->ofdev.dev, control);
 
 	return 0;
 }
 
 static int i2sbus_remove(struct macio_dev* dev)
 {
-	struct i2sbus_control *control = dev->ofdev.dev.driver_data;
+	struct i2sbus_control *control = dev_get_drvdata(&dev->ofdev.dev);
 	struct i2sbus_dev *i2sdev, *tmp;
 
 	list_for_each_entry_safe(i2sdev, tmp, &control->list, item)
@@ -377,7 +377,7 @@ static int i2sbus_remove(struct macio_de
 #ifdef CONFIG_PM
 static int i2sbus_suspend(struct macio_dev* dev, pm_message_t state)
 {
-	struct i2sbus_control *control = dev->ofdev.dev.driver_data;
+	struct i2sbus_control *control = dev_get_drvdata(&dev->ofdev.dev);
 	struct codec_info_item *cii;
 	struct i2sbus_dev* i2sdev;
 	int err, ret = 0;
@@ -407,7 +407,7 @@ static int i2sbus_suspend(struct macio_d
 
 static int i2sbus_resume(struct macio_dev* dev)
 {
-	struct i2sbus_control *control = dev->ofdev.dev.driver_data;
+	struct i2sbus_control *control = dev_get_drvdata(&dev->ofdev.dev);
 	struct codec_info_item *cii;
 	struct i2sbus_dev* i2sdev;
 	int err, ret = 0;
--- a/sound/soc/codecs/wm8400.c
+++ b/sound/soc/codecs/wm8400.c
@@ -1473,8 +1473,8 @@ static int wm8400_codec_probe(struct pla
 
 	codec = &priv->codec;
 	codec->private_data = priv;
-	codec->control_data = dev->dev.driver_data;
-	priv->wm8400 = dev->dev.driver_data;
+	codec->control_data = dev_get_drvdata(&dev->dev);
+	priv->wm8400 = dev_get_drvdata(&dev->dev);
 
 	ret = regulator_bulk_get(priv->wm8400->dev,
 				 ARRAY_SIZE(power), &power[0]);
--- a/sound/soc/codecs/wm8731.c
+++ b/sound/soc/codecs/wm8731.c
@@ -666,14 +666,14 @@ static int __devinit wm8731_spi_probe(st
 	codec->hw_write = (hw_write_t)wm8731_spi_write;
 	codec->dev = &spi->dev;
 
-	spi->dev.driver_data = wm8731;
+	dev_set_drvdata(&spi->dev, wm8731);
 
 	return wm8731_register(wm8731);
 }
 
 static int __devexit wm8731_spi_remove(struct spi_device *spi)
 {
-	struct wm8731_priv *wm8731 = spi->dev.driver_data;
+	struct wm8731_priv *wm8731 = dev_get_drvdata(&spi->dev);
 
 	wm8731_unregister(wm8731);
 
--- a/sound/soc/codecs/wm8753.c
+++ b/sound/soc/codecs/wm8753.c
@@ -1822,14 +1822,14 @@ static int __devinit wm8753_spi_probe(st
 	codec->hw_write = (hw_write_t)wm8753_spi_write;
 	codec->dev = &spi->dev;
 
-	spi->dev.driver_data = wm8753;
+	dev_set_drvdata(&spi->dev, wm8753);
 
 	return wm8753_register(wm8753);
 }
 
 static int __devexit wm8753_spi_remove(struct spi_device *spi)
 {
-	struct wm8753_priv *wm8753 = spi->dev.driver_data;
+	struct wm8753_priv *wm8753 = dev_get_drvdata(&spi->dev);
 	wm8753_unregister(wm8753);
 	return 0;
 }

Re: [PATCH] sound: remove driver_data direct access of struct device

[Mark Brown]

On Mon, May 04, 2009 at 01:19:36PM -0700, Greg Kroah-Hartman wrote:
> From: Greg Kroah-Hartman <gregkh@suse.de>
> 
> In the near future, the driver core is going to not allow direct access
> to the driver_data pointer in struct device.  Instead, the functions
> dev_get_drvdata() and dev_set_drvdata() should be used.  These functions
> have been around since the beginning, so are backwards compatible with
> all older kernel versions.

> Cc: Takashi Iwai <tiwai@suse.de>

Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Re: [PATCH] sound: remove driver_data direct access of struct device

[Greg KH]

On Mon, May 04, 2009 at 09:34:10PM +0100, Mark Brown wrote:
> On Mon, May 04, 2009 at 01:19:36PM -0700, Greg Kroah-Hartman wrote:
> > From: Greg Kroah-Hartman <gregkh@suse.de>
> > 
> > In the near future, the driver core is going to not allow direct access
> > to the driver_data pointer in struct device.  Instead, the functions
> > dev_get_drvdata() and dev_set_drvdata() should be used.  These functions
> > have been around since the beginning, so are backwards compatible with
> > all older kernel versions.
> 
> > Cc: Takashi Iwai <tiwai@suse.de>
> 
> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Thanks, added it to the patch.

greg k-h