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extcon: adc-jack: Use devm_extcon_dev_allocate for extcon_dev 

This patch use devm_extcon_dev_allocate() to simplify the memory control
of extcon device.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Chanwoo Choi 2014-04-21 20:49:30 +09:00
parent ef70a214b5
commit 1876fd9af5
1 changed files with 12 additions and 9 deletions
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21
drivers/extcon/extcon-adc-jack.c
View File

@ -39,7 +39,7 @@
* @chan: iio channel being queried.
*/
struct adc_jack_data {
struct extcon_dev edev;
struct extcon_dev *edev;
const char **cable_names;
int num_cables;
@ -64,7 +64,7 @@ static void adc_jack_handler(struct work_struct *work)
ret = iio_read_channel_raw(data->chan, &adc_val);
if (ret < 0) {
dev_err(&data->edev.dev, "read channel() error: %d\n", ret);
dev_err(&data->edev->dev, "read channel() error: %d\n", ret);
return;
}
@ -80,7 +80,7 @@ static void adc_jack_handler(struct work_struct *work)
}
/* if no def has met, it means state = 0 (no cables attached) */
extcon_set_state(&data->edev, state);
extcon_set_state(data->edev, state);
}
static irqreturn_t adc_jack_irq_thread(int irq, void *_data)
@ -102,18 +102,21 @@ static int adc_jack_probe(struct platform_device *pdev)
if (!data)
return -ENOMEM;
data->edev.name = pdata->name;
if (!pdata->cable_names) {
dev_err(&pdev->dev, "error: cable_names not defined.\n");
return -EINVAL;
}
data->edev.dev.parent = &pdev->dev;
data->edev.supported_cable = pdata->cable_names;
data->edev = devm_extcon_dev_allocate(&pdev->dev, pdata->cable_names);
if (IS_ERR(data->edev)) {
dev_err(&pdev->dev, "failed to allocate extcon device\n");
return -ENOMEM;
}
data->edev->dev.parent = &pdev->dev;
data->edev->name = pdata->name;
/* Check the length of array and set num_cables */
for (i = 0; data->edev.supported_cable[i]; i++)
for (i = 0; data->edev->supported_cable[i]; i++)
;
if (i == 0 || i > SUPPORTED_CABLE_MAX) {
dev_err(&pdev->dev, "error: pdata->cable_names size = %d\n",
@ -144,7 +147,7 @@ static int adc_jack_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, data);
err = devm_extcon_dev_register(&pdev->dev, &data->edev);
err = devm_extcon_dev_register(&pdev->dev, data->edev);
if (err)
return err;