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Commit dae61651 authored by Chanwoo Choi's avatar Chanwoo Choi
Browse files

extcon: Change field type of 'dev' in extcon_dev structure 



The extcon device must always need 'struct device' so this patch change
field type of 'dev' instead of allocating memory for 'struct device' on
extcon_dev_register() function.

Signed-off-by: default avatarChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: default avatarMyungjoo Ham <cw00.choi@samsung.com>
parent 41024243

drivers/extcon/extcon-adc-jack.c

+1 −1
Original line number Diff line number Diff line
@@ -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;

	}

drivers/extcon/extcon-class.c

+23 −29
Original line number Diff line number Diff line
@@ -162,7 +162,7 @@ static ssize_t name_show(struct device *dev, struct device_attribute *attr, 
			return ret;

	}



	return sprintf(buf, "%s\n", dev_name(edev->dev));

	return sprintf(buf, "%s\n", dev_name(&edev->dev));

}

static DEVICE_ATTR_RO(name);
@@ -230,7 +230,7 @@ int extcon_update_state(struct extcon_dev *edev, u32 mask, u32 state) 
		/* This could be in interrupt handler */

		prop_buf = (char *)get_zeroed_page(GFP_ATOMIC);

		if (prop_buf) {

			length = name_show(edev->dev, NULL, prop_buf);

			length = name_show(&edev->dev, NULL, prop_buf);

			if (length > 0) {

				if (prop_buf[length - 1] == '\n')

					prop_buf[length - 1] = 0;
@@ -238,7 +238,7 @@ int extcon_update_state(struct extcon_dev *edev, u32 mask, u32 state) 
					"NAME=%s", prop_buf);

				envp[env_offset++] = name_buf;

			}

			length = state_show(edev->dev, NULL, prop_buf);

			length = state_show(&edev->dev, NULL, prop_buf);

			if (length > 0) {

				if (prop_buf[length - 1] == '\n')

					prop_buf[length - 1] = 0;
@@ -250,14 +250,14 @@ int extcon_update_state(struct extcon_dev *edev, u32 mask, u32 state) 
			/* Unlock early before uevent */

			spin_unlock_irqrestore(&edev->lock, flags);



			kobject_uevent_env(&edev->dev->kobj, KOBJ_CHANGE, envp);

			kobject_uevent_env(&edev->dev.kobj, KOBJ_CHANGE, envp);

			free_page((unsigned long)prop_buf);

		} else {

			/* Unlock early before uevent */

			spin_unlock_irqrestore(&edev->lock, flags);



			dev_err(edev->dev, "out of memory in extcon_set_state\n");

			kobject_uevent(&edev->dev->kobj, KOBJ_CHANGE);

			dev_err(&edev->dev, "out of memory in extcon_set_state\n");

			kobject_uevent(&edev->dev.kobj, KOBJ_CHANGE);

		}

	} else {

		/* No changes */
@@ -556,7 +556,6 @@ static int create_extcon_class(void) 


static void extcon_dev_release(struct device *dev)

{

	kfree(dev);

}



static const char *muex_name = "mutually_exclusive";
@@ -594,19 +593,16 @@ int extcon_dev_register(struct extcon_dev *edev, struct device *dev) 
	}



	if (index > SUPPORTED_CABLE_MAX) {

		dev_err(edev->dev, "extcon: maximum number of supported cables exceeded.\n");

		dev_err(&edev->dev, "extcon: maximum number of supported cables exceeded.\n");

		return -EINVAL;

	}



	edev->dev = kzalloc(sizeof(struct device), GFP_KERNEL);

	if (!edev->dev)

		return -ENOMEM;

	edev->dev->parent = dev;

	edev->dev->class = extcon_class;

	edev->dev->release = extcon_dev_release;

	edev->dev.parent = dev;

	edev->dev.class = extcon_class;

	edev->dev.release = extcon_dev_release;



	edev->name = edev->name ? edev->name : dev_name(dev);

	dev_set_name(edev->dev, "%s", edev->name);

	dev_set_name(&edev->dev, "%s", edev->name);



	if (edev->max_supported) {

		char buf[10];
@@ -714,7 +710,7 @@ int extcon_dev_register(struct extcon_dev *edev, struct device *dev) 
			goto err_alloc_groups;

		}



		edev->extcon_dev_type.name = dev_name(edev->dev);

		edev->extcon_dev_type.name = dev_name(&edev->dev);

		edev->extcon_dev_type.release = dummy_sysfs_dev_release;



		for (index = 0; index < edev->max_supported; index++)
@@ -724,25 +720,24 @@ int extcon_dev_register(struct extcon_dev *edev, struct device *dev) 
			edev->extcon_dev_type.groups[index] =

				&edev->attr_g_muex;



		edev->dev->type = &edev->extcon_dev_type;

		edev->dev.type = &edev->extcon_dev_type;

	}



	ret = device_register(edev->dev);

	ret = device_register(&edev->dev);

	if (ret) {

		put_device(edev->dev);

		put_device(&edev->dev);

		goto err_dev;

	}

#if defined(CONFIG_ANDROID)

	if (switch_class)

		ret = class_compat_create_link(switch_class, edev->dev,

					       NULL);

		ret = class_compat_create_link(switch_class, &edev->dev, NULL);

#endif /* CONFIG_ANDROID */



	spin_lock_init(&edev->lock);



	RAW_INIT_NOTIFIER_HEAD(&edev->nh);



	dev_set_drvdata(edev->dev, edev);

	dev_set_drvdata(&edev->dev, edev);

	edev->state = 0;



	mutex_lock(&extcon_dev_list_lock);
@@ -768,7 +763,6 @@ err_alloc_cables: 
	if (edev->max_supported)

		kfree(edev->cables);

err_sysfs_alloc:

	kfree(edev->dev);

	return ret;

}

EXPORT_SYMBOL_GPL(extcon_dev_register);
@@ -788,9 +782,9 @@ void extcon_dev_unregister(struct extcon_dev *edev) 
	list_del(&edev->entry);

	mutex_unlock(&extcon_dev_list_lock);



	if (IS_ERR_OR_NULL(get_device(edev->dev))) {

		dev_err(edev->dev, "Failed to unregister extcon_dev (%s)\n",

				dev_name(edev->dev));

	if (IS_ERR_OR_NULL(get_device(&edev->dev))) {

		dev_err(&edev->dev, "Failed to unregister extcon_dev (%s)\n",

				dev_name(&edev->dev));

		return;

	}
@@ -812,10 +806,10 @@ void extcon_dev_unregister(struct extcon_dev *edev) 


#if defined(CONFIG_ANDROID)

	if (switch_class)

		class_compat_remove_link(switch_class, edev->dev, NULL);

		class_compat_remove_link(switch_class, &edev->dev, NULL);

#endif

	device_unregister(edev->dev);

	put_device(edev->dev);

	device_unregister(&edev->dev);

	put_device(&edev->dev);

}

EXPORT_SYMBOL_GPL(extcon_dev_unregister);

include/linux/extcon.h

+2 −2
Original line number Diff line number Diff line
@@ -93,7 +93,7 @@ struct extcon_cable; 
 *			name of the extcon device.

 * @print_state:	An optional callback to override the method to print the

 *			status of the extcon device.

 * @dev:		Device of this extcon. Do not provide at register-time.

 * @dev:		Device of this extcon.

 * @state:		Attach/detach state of this extcon. Do not provide at

 *			register-time.

 * @nh:			Notifier for the state change events from this extcon
@@ -121,7 +121,7 @@ struct extcon_dev { 
	ssize_t	(*print_state)(struct extcon_dev *edev, char *buf);



	/* Internal data. Please do not set. */

	struct device *dev;

	struct device dev;

	struct raw_notifier_head nh;

	struct list_head entry;

	int max_supported;