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Subject[PATCH 01/13] backlight: adp8860: use devm_ functions
Date
The devm_ functions allocate memory that is released when a driver
detaches. This patch uses devm_kzalloc of these functions.

Cc: Michael Hennerich <michael.hennerich@analog.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
---
drivers/video/backlight/adp8860_bl.c | 22 +++++++---------------
1 files changed, 7 insertions(+), 15 deletions(-)
diff --git a/drivers/video/backlight/adp8860_bl.c b/drivers/video/backlight/adp8860_bl.c
index 550dbf0..48af78f 100644
--- a/drivers/video/backlight/adp8860_bl.c
+++ b/drivers/video/backlight/adp8860_bl.c
@@ -222,7 +222,8 @@ static int __devinit adp8860_led_probe(struct i2c_client *client)
struct led_info *cur_led;
int ret, i;

- led = kzalloc(sizeof(*led) * pdata->num_leds, GFP_KERNEL);
+ led = devm_kzalloc(&client->dev, sizeof(*led) * pdata->num_leds,
+ GFP_KERNEL);
if (led == NULL) {
dev_err(&client->dev, "failed to alloc memory\n");
return -ENOMEM;
@@ -236,7 +237,7 @@ static int __devinit adp8860_led_probe(struct i2c_client *client)

if (ret) {
dev_err(&client->dev, "failed to write\n");
- goto err_free;
+ return ret;
}

for (i = 0; i < pdata->num_leds; ++i) {
@@ -291,9 +292,6 @@ static int __devinit adp8860_led_probe(struct i2c_client *client)
cancel_work_sync(&led[i].work);
}

- err_free:
- kfree(led);
-
return ret;
}

@@ -309,7 +307,6 @@ static int __devexit adp8860_led_remove(struct i2c_client *client)
cancel_work_sync(&data->led[i].work);
}

- kfree(data->led);
return 0;
}
#else
@@ -675,13 +672,13 @@ static int __devinit adp8860_probe(struct i2c_client *client,
return -EINVAL;
}

- data = kzalloc(sizeof(*data), GFP_KERNEL);
+ data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
if (data == NULL)
return -ENOMEM;

ret = adp8860_read(client, ADP8860_MFDVID, &reg_val);
if (ret < 0)
- goto out2;
+ return ret;

switch (ADP8860_MANID(reg_val)) {
case ADP8863_MANUFID:
@@ -694,8 +691,7 @@ static int __devinit adp8860_probe(struct i2c_client *client,
break;
default:
dev_err(&client->dev, "failed to probe\n");
- ret = -ENODEV;
- goto out2;
+ return -ENODEV;
}

/* It's confirmed that the DEVID field is actually a REVID */
@@ -717,8 +713,7 @@ static int __devinit adp8860_probe(struct i2c_client *client,
&client->dev, data, &adp8860_bl_ops, &props);
if (IS_ERR(bl)) {
dev_err(&client->dev, "failed to register backlight\n");
- ret = PTR_ERR(bl);
- goto out2;
+ return PTR_ERR(bl);
}

bl->props.brightness = ADP8860_MAX_BRIGHTNESS;
@@ -756,8 +751,6 @@ out:
&adp8860_bl_attr_group);
out1:
backlight_device_unregister(bl);
-out2:
- kfree(data);

return ret;
}
@@ -776,7 +769,6 @@ static int __devexit adp8860_remove(struct i2c_client *client)
&adp8860_bl_attr_group);

backlight_device_unregister(data->bl);
- kfree(data);

return 0;
}
--
1.7.1



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