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Commit 805952a8 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

Driver core: convert vt code to use struct device 



Converts from using struct "class_device" to "struct device" making
everything show up properly in /sys/devices/ with symlinks from the
/sys/class directory.

Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 805fab47

drivers/char/vt.c

+39 −42
Original line number Diff line number Diff line
@@ -112,7 +112,7 @@ 
struct con_driver {

	const struct consw *con;

	const char *desc;

	struct class_device *class_dev;

	struct device *dev;

	int node;

	int first;

	int last;
@@ -3023,10 +3023,10 @@ static inline int vt_unbind(struct con_driver *con) 
}

#endif /* CONFIG_VT_HW_CONSOLE_BINDING */



static ssize_t store_bind(struct class_device *class_device,

static ssize_t store_bind(struct device *dev, struct device_attribute *attr,

			  const char *buf, size_t count)

{

	struct con_driver *con = class_get_devdata(class_device);

	struct con_driver *con = dev_get_drvdata(dev);

	int bind = simple_strtoul(buf, NULL, 0);



	if (bind)
@@ -3037,17 +3037,19 @@ static ssize_t store_bind(struct class_device *class_device, 
	return count;

}



static ssize_t show_bind(struct class_device *class_device, char *buf)

static ssize_t show_bind(struct device *dev, struct device_attribute *attr,

			 char *buf)

{

	struct con_driver *con = class_get_devdata(class_device);

	struct con_driver *con = dev_get_drvdata(dev);

	int bind = con_is_bound(con->con);



	return snprintf(buf, PAGE_SIZE, "%i\n", bind);

}



static ssize_t show_name(struct class_device *class_device, char *buf)

static ssize_t show_name(struct device *dev, struct device_attribute *attr,

			 char *buf)

{

	struct con_driver *con = class_get_devdata(class_device);

	struct con_driver *con = dev_get_drvdata(dev);



	return snprintf(buf, PAGE_SIZE, "%s %s\n",

			(con->flag & CON_DRIVER_FLAG_MODULE) ? "(M)" : "(S)",
@@ -3055,43 +3057,40 @@ static ssize_t show_name(struct class_device *class_device, char *buf) 


}



static struct class_device_attribute class_device_attrs[] = {

static struct device_attribute device_attrs[] = {

	__ATTR(bind, S_IRUGO|S_IWUSR, show_bind, store_bind),

	__ATTR(name, S_IRUGO, show_name, NULL),

};



static int vtconsole_init_class_device(struct con_driver *con)

static int vtconsole_init_device(struct con_driver *con)

{

	int i;

	int error = 0;



	con->flag |= CON_DRIVER_FLAG_ATTR;

	class_set_devdata(con->class_dev, con);

	for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++) {

		error = class_device_create_file(con->class_dev,

					 &class_device_attrs[i]);

	dev_set_drvdata(con->dev, con);

	for (i = 0; i < ARRAY_SIZE(device_attrs); i++) {

		error = device_create_file(con->dev, &device_attrs[i]);

		if (error)

			break;

	}



	if (error) {

		while (--i >= 0)

			class_device_remove_file(con->class_dev,

					 &class_device_attrs[i]);

			device_remove_file(con->dev, &device_attrs[i]);

		con->flag &= ~CON_DRIVER_FLAG_ATTR;

	}



	return error;

}



static void vtconsole_deinit_class_device(struct con_driver *con)

static void vtconsole_deinit_device(struct con_driver *con)

{

	int i;



	if (con->flag & CON_DRIVER_FLAG_ATTR) {

		for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++)

			class_device_remove_file(con->class_dev,

						 &class_device_attrs[i]);

		for (i = 0; i < ARRAY_SIZE(device_attrs); i++)

			device_remove_file(con->dev, &device_attrs[i]);

		con->flag &= ~CON_DRIVER_FLAG_ATTR;

	}

}
@@ -3179,18 +3178,17 @@ int register_con_driver(const struct consw *csw, int first, int last) 
	if (retval)

		goto err;



	con_driver->class_dev = class_device_create(vtconsole_class, NULL,

	con_driver->dev = device_create(vtconsole_class, NULL,

					MKDEV(0, con_driver->node),

						    NULL, "vtcon%i",

						    con_driver->node);

					"vtcon%i", con_driver->node);



	if (IS_ERR(con_driver->class_dev)) {

		printk(KERN_WARNING "Unable to create class_device for %s; "

	if (IS_ERR(con_driver->dev)) {

		printk(KERN_WARNING "Unable to create device for %s; "

		       "errno = %ld\n", con_driver->desc,

		       PTR_ERR(con_driver->class_dev));

		con_driver->class_dev = NULL;

		       PTR_ERR(con_driver->dev));

		con_driver->dev = NULL;

	} else {

		vtconsole_init_class_device(con_driver);

		vtconsole_init_device(con_driver);

	}



err:
@@ -3226,12 +3224,12 @@ int unregister_con_driver(const struct consw *csw) 


		if (con_driver->con == csw &&

		    con_driver->flag & CON_DRIVER_FLAG_MODULE) {

			vtconsole_deinit_class_device(con_driver);

			class_device_destroy(vtconsole_class,

			vtconsole_deinit_device(con_driver);

			device_destroy(vtconsole_class,

				       MKDEV(0, con_driver->node));

			con_driver->con = NULL;

			con_driver->desc = NULL;

			con_driver->class_dev = NULL;

			con_driver->dev = NULL;

			con_driver->node = 0;

			con_driver->flag = 0;

			con_driver->first = 0;
@@ -3289,19 +3287,18 @@ static int __init vtconsole_class_init(void) 
	for (i = 0; i < MAX_NR_CON_DRIVER; i++) {

		struct con_driver *con = &registered_con_driver[i];



		if (con->con && !con->class_dev) {

			con->class_dev =

				class_device_create(vtconsole_class, NULL,

						    MKDEV(0, con->node), NULL,

		if (con->con && !con->dev) {

			con->dev = device_create(vtconsole_class, NULL,

						 MKDEV(0, con->node),

						 "vtcon%i", con->node);



			if (IS_ERR(con->class_dev)) {

			if (IS_ERR(con->dev)) {

				printk(KERN_WARNING "Unable to create "

				       "class_device for %s; errno = %ld\n",

				       con->desc, PTR_ERR(con->class_dev));

				con->class_dev = NULL;

				       "device for %s; errno = %ld\n",

				       con->desc, PTR_ERR(con->dev));

				con->dev = NULL;

			} else {

				vtconsole_init_class_device(con);

				vtconsole_init_device(con);

			}

		}

	}