From fbae3fb1546e199ab0cd185348f8124411a1ca9d Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Thu, 3 Jun 2010 11:33:58 +0200 Subject: i2c: Remove all i2c_set_clientdata(client, NULL) in drivers I2C drivers can use the clientdata-pointer to point to private data. As I2C devices are not really unregistered, but merely detached from their driver, it used to be the drivers obligation to clear this pointer during remove() or a failed probe(). As a couple of drivers forgot to do this, it was agreed that it was cleaner if the i2c-core does this clearance when appropriate, as there is no guarantee for the lifetime of the clientdata-pointer after remove() anyhow. This feature was added to the core with commit e4a7b9b04de15f6b63da5ccdd373ffa3057a3681 to fix the faulty drivers. As there is no need anymore to clear the clientdata-pointer, remove all current occurrences in the drivers to simplify the code and prevent confusion. Signed-off-by: Wolfram Sang Acked-by: Mark Brown Acked-by: Greg Kroah-Hartman Acked-by: Richard Purdie Acked-by: Dmitry Torokhov Signed-off-by: Jean Delvare --- drivers/video/backlight/adp8860_bl.c | 2 -- drivers/video/backlight/tosa_bl.c | 2 -- 2 files changed, 4 deletions(-) (limited to 'drivers/video') diff --git a/drivers/video/backlight/adp8860_bl.c b/drivers/video/backlight/adp8860_bl.c index 921ca37398f3..3ec24609151e 100644 --- a/drivers/video/backlight/adp8860_bl.c +++ b/drivers/video/backlight/adp8860_bl.c @@ -756,7 +756,6 @@ out: out1: backlight_device_unregister(bl); out2: - i2c_set_clientdata(client, NULL); kfree(data); return ret; @@ -776,7 +775,6 @@ static int __devexit adp8860_remove(struct i2c_client *client) &adp8860_bl_attr_group); backlight_device_unregister(data->bl); - i2c_set_clientdata(client, NULL); kfree(data); return 0; diff --git a/drivers/video/backlight/tosa_bl.c b/drivers/video/backlight/tosa_bl.c index e03e60bbfd85..2a04b382ec48 100644 --- a/drivers/video/backlight/tosa_bl.c +++ b/drivers/video/backlight/tosa_bl.c @@ -119,7 +119,6 @@ static int __devinit tosa_bl_probe(struct i2c_client *client, err_reg: data->bl = NULL; - i2c_set_clientdata(client, NULL); err_gpio_dir: gpio_free(TOSA_GPIO_BL_C20MA); err_gpio_bl: @@ -133,7 +132,6 @@ static int __devexit tosa_bl_remove(struct i2c_client *client) backlight_device_unregister(data->bl); data->bl = NULL; - i2c_set_clientdata(client, NULL); gpio_free(TOSA_GPIO_BL_C20MA); -- cgit v1.2.3