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Commit 968fc5dc authored by Alexey Starikovskiy's avatar Alexey Starikovskiy Committed by Len Brown
Browse files

ACPI: Fan: fan device does not need own structure 



Signed-off-by: default avatarAlexey Starikovskiy <astarikovskiy@suse.de>
Acked-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent c35923bc

drivers/acpi/fan.c

+7 −25
Original line number Original line Diff line number Diff line
@@ -68,10 +68,6 @@ static struct acpi_driver acpi_fan_driver = { 
		},

		},

};

};





struct acpi_fan {

	struct acpi_device * device;

};



/* --------------------------------------------------------------------------

/* --------------------------------------------------------------------------

                              FS Interface (/proc)

                              FS Interface (/proc)

   -------------------------------------------------------------------------- */

   -------------------------------------------------------------------------- */
@@ -80,12 +76,12 @@ static struct proc_dir_entry *acpi_fan_dir; 




static int acpi_fan_read_state(struct seq_file *seq, void *offset)

static int acpi_fan_read_state(struct seq_file *seq, void *offset)

{

{

	struct acpi_fan *fan = seq->private;

	struct acpi_device *device = seq->private;

	int state = 0;

	int state = 0;









	if (fan) {

	if (device) {

		if (acpi_bus_get_power(fan->device->handle, &state))

		if (acpi_bus_get_power(device->handle, &state))

			seq_printf(seq, "status:                  ERROR\n");

			seq_printf(seq, "status:                  ERROR\n");

		else

		else

			seq_printf(seq, "status:                  %s\n",

			seq_printf(seq, "status:                  %s\n",
@@ -105,11 +101,10 @@ acpi_fan_write_state(struct file *file, const char __user * buffer, 
{

{

	int result = 0;

	int result = 0;

	struct seq_file *m = file->private_data;

	struct seq_file *m = file->private_data;

	struct acpi_fan *fan = m->private;

	struct acpi_device *device = m->private;

	char state_string[12] = { '\0' };

	char state_string[12] = { '\0' };







	if (count > sizeof(state_string) - 1)

	if (!fan || (count > sizeof(state_string) - 1))

		return -EINVAL;

		return -EINVAL;





	if (copy_from_user(state_string, buffer, count))

	if (copy_from_user(state_string, buffer, count))
@@ -117,7 +112,7 @@ acpi_fan_write_state(struct file *file, const char __user * buffer, 




	state_string[count] = '\0';

	state_string[count] = '\0';





	result = acpi_bus_set_power(fan->device->handle,

	result = acpi_bus_set_power(device->handle,

				    simple_strtoul(state_string, NULL, 0));

				    simple_strtoul(state_string, NULL, 0));

	if (result)

	if (result)

		return result;

		return result;
@@ -158,7 +153,7 @@ static int acpi_fan_add_fs(struct acpi_device *device) 
		return -ENODEV;

		return -ENODEV;

	else {

	else {

		entry->proc_fops = &acpi_fan_state_ops;

		entry->proc_fops = &acpi_fan_state_ops;

		entry->data = acpi_driver_data(device);

		entry->data = device;

		entry->owner = THIS_MODULE;

		entry->owner = THIS_MODULE;

	}

	}
@@ -191,14 +186,8 @@ static int acpi_fan_add(struct acpi_device *device) 
	if (!device)

	if (!device)

		return -EINVAL;

		return -EINVAL;





	fan = kzalloc(sizeof(struct acpi_fan), GFP_KERNEL);

	if (!fan)

		return -ENOMEM;



	fan->device = device;

	strcpy(acpi_device_name(device), "Fan");

	strcpy(acpi_device_name(device), "Fan");

	strcpy(acpi_device_class(device), ACPI_FAN_CLASS);

	strcpy(acpi_device_class(device), ACPI_FAN_CLASS);

	acpi_driver_data(device) = fan;





	result = acpi_bus_get_power(device->handle, &state);

	result = acpi_bus_get_power(device->handle, &state);

	if (result) {

	if (result) {
@@ -227,18 +216,11 @@ static int acpi_fan_add(struct acpi_device *device) 




static int acpi_fan_remove(struct acpi_device *device, int type)

static int acpi_fan_remove(struct acpi_device *device, int type)

{

{

	struct acpi_fan *fan = NULL;





	if (!device || !acpi_driver_data(device))

	if (!device || !acpi_driver_data(device))

		return -EINVAL;

		return -EINVAL;





	fan = acpi_driver_data(device);



	acpi_fan_remove_fs(device);

	acpi_fan_remove_fs(device);





	kfree(fan);



	return 0;

	return 0;

}

}