This patch use devm_extcon_dev_allocate() to simplify the memory control of extcon device.
Signed-off-by: Chanwoo Choi <[email protected]> --- drivers/extcon/extcon-adc-jack.c | 25 ++++++++++++++----------- 1 file changed, 14 insertions(+), 11 deletions(-) diff --git a/drivers/extcon/extcon-adc-jack.c b/drivers/extcon/extcon-adc-jack.c index e23f1c2..56dcf58 100644 --- a/drivers/extcon/extcon-adc-jack.c +++ b/drivers/extcon/extcon-adc-jack.c @@ -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) @@ -102,19 +102,22 @@ static int adc_jack_probe(struct platform_device *pdev) if (!data) return -ENOMEM; - data->edev.name = pdata->name; - if (!pdata->cable_names) { err = -EINVAL; dev_err(&pdev->dev, "error: cable_names not defined.\n"); goto out; } - 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 (!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) { err = -EINVAL; @@ -149,7 +152,7 @@ static int adc_jack_probe(struct platform_device *pdev) platform_set_drvdata(pdev, data); - err = extcon_dev_register(&data->edev); + err = extcon_dev_register(data->edev); if (err) goto out; @@ -171,7 +174,7 @@ static int adc_jack_probe(struct platform_device *pdev) return 0; err_irq: - extcon_dev_unregister(&data->edev); + extcon_dev_unregister(data->edev); out: return err; } @@ -182,7 +185,7 @@ static int adc_jack_remove(struct platform_device *pdev) free_irq(data->irq, data); cancel_work_sync(&data->handler.work); - extcon_dev_unregister(&data->edev); + extcon_dev_unregister(data->edev); return 0; } -- 1.8.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
