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Commit 7c5bbb2e authored by Dmitry Torokhov's avatar Dmitry Torokhov
Browse files

Input: serio_raw - rename serio_raw_list to serio_raw_client 



'serio_raw_list' and 'list' names do not accurately represent their objects
and are extremely confusing when reading the code. Let's use better suited
names.

Reviewed-by: default avatarWanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent ba538cd2

drivers/input/serio/serio_raw.c

+39 −36
Original line number Original line Diff line number Diff line
@@ -38,11 +38,11 @@ struct serio_raw { 
	struct serio *serio;

	struct serio *serio;

	struct miscdevice dev;

	struct miscdevice dev;

	wait_queue_head_t wait;

	wait_queue_head_t wait;

	struct list_head list;

	struct list_head client_list;

	struct list_head node;

	struct list_head node;

};

};





struct serio_raw_list {

struct serio_raw_client {

	struct fasync_struct *fasync;

	struct fasync_struct *fasync;

	struct serio_raw *serio_raw;

	struct serio_raw *serio_raw;

	struct list_head node;

	struct list_head node;
@@ -58,9 +58,9 @@ static unsigned int serio_raw_no; 




static int serio_raw_fasync(int fd, struct file *file, int on)

static int serio_raw_fasync(int fd, struct file *file, int on)

{

{

	struct serio_raw_list *list = file->private_data;

	struct serio_raw_client *client = file->private_data;





	return fasync_helper(fd, file, on, &list->fasync);

	return fasync_helper(fd, file, on, &client->fasync);

}

}





static struct serio_raw *serio_raw_locate(int minor)

static struct serio_raw *serio_raw_locate(int minor)
@@ -78,8 +78,8 @@ static struct serio_raw *serio_raw_locate(int minor) 
static int serio_raw_open(struct inode *inode, struct file *file)

static int serio_raw_open(struct inode *inode, struct file *file)

{

{

	struct serio_raw *serio_raw;

	struct serio_raw *serio_raw;

	struct serio_raw_list *list;

	struct serio_raw_client *client;

	int retval = 0;

	int retval;





	retval = mutex_lock_interruptible(&serio_raw_mutex);

	retval = mutex_lock_interruptible(&serio_raw_mutex);

	if (retval)

	if (retval)
@@ -96,17 +96,17 @@ static int serio_raw_open(struct inode *inode, struct file *file) 
		goto out;

		goto out;

	}

	}





	list = kzalloc(sizeof(struct serio_raw_list), GFP_KERNEL);

	client = kzalloc(sizeof(struct serio_raw_client), GFP_KERNEL);

	if (!list) {

	if (!client) {

		retval = -ENOMEM;

		retval = -ENOMEM;

		goto out;

		goto out;

	}

	}





	list->serio_raw = serio_raw;

	client->serio_raw = serio_raw;

	file->private_data = list;

	file->private_data = client;





	kref_get(&serio_raw->kref);

	kref_get(&serio_raw->kref);

	list_add_tail(&list->node, &serio_raw->list);

	list_add_tail(&client->node, &serio_raw->client_list);





out:

out:

	mutex_unlock(&serio_raw_mutex);

	mutex_unlock(&serio_raw_mutex);
@@ -125,8 +125,8 @@ static void serio_raw_cleanup(struct kref *kref) 




static int serio_raw_release(struct inode *inode, struct file *file)

static int serio_raw_release(struct inode *inode, struct file *file)

{

{

	struct serio_raw_list *list = file->private_data;

	struct serio_raw_client *client = file->private_data;

	struct serio_raw *serio_raw = list->serio_raw;

	struct serio_raw *serio_raw = client->serio_raw;





	mutex_lock(&serio_raw_mutex);

	mutex_lock(&serio_raw_mutex);
@@ -156,8 +156,8 @@ static int serio_raw_fetch_byte(struct serio_raw *serio_raw, char *c) 




static ssize_t serio_raw_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)

static ssize_t serio_raw_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)

{

{

	struct serio_raw_list *list = file->private_data;

	struct serio_raw_client *client = file->private_data;

	struct serio_raw *serio_raw = list->serio_raw;

	struct serio_raw *serio_raw = client->serio_raw;

	char uninitialized_var(c);

	char uninitialized_var(c);

	ssize_t retval = 0;

	ssize_t retval = 0;
@@ -167,8 +167,9 @@ static ssize_t serio_raw_read(struct file *file, char __user *buffer, size_t cou 
	if (serio_raw->head == serio_raw->tail && (file->f_flags & O_NONBLOCK))

	if (serio_raw->head == serio_raw->tail && (file->f_flags & O_NONBLOCK))

		return -EAGAIN;

		return -EAGAIN;





	retval = wait_event_interruptible(list->serio_raw->wait,

	retval = wait_event_interruptible(serio_raw->wait,

					  serio_raw->head != serio_raw->tail || !serio_raw->serio);

					  serio_raw->head != serio_raw->tail ||

						!serio_raw->serio);

	if (retval)

	if (retval)

		return retval;

		return retval;
@@ -186,7 +187,8 @@ static ssize_t serio_raw_read(struct file *file, char __user *buffer, size_t cou 




static ssize_t serio_raw_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)

static ssize_t serio_raw_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)

{

{

	struct serio_raw_list *list = file->private_data;

	struct serio_raw_client *client = file->private_data;

	struct serio_raw *serio_raw = client->serio_raw;

	ssize_t written = 0;

	ssize_t written = 0;

	int retval;

	int retval;

	unsigned char c;

	unsigned char c;
@@ -195,7 +197,7 @@ static ssize_t serio_raw_write(struct file *file, const char __user *buffer, siz 
	if (retval)

	if (retval)

		return retval;

		return retval;





	if (!list->serio_raw->serio) {

	if (!serio_raw->serio) {

		retval = -ENODEV;

		retval = -ENODEV;

		goto out;

		goto out;

	}

	}
@@ -208,7 +210,7 @@ static ssize_t serio_raw_write(struct file *file, const char __user *buffer, siz 
			retval = -EFAULT;

			retval = -EFAULT;

			goto out;

			goto out;

		}

		}

		if (serio_write(list->serio_raw->serio, c)) {

		if (serio_write(serio_raw->serio, c)) {

			retval = -EIO;

			retval = -EIO;

			goto out;

			goto out;

		}

		}
@@ -222,11 +224,12 @@ static ssize_t serio_raw_write(struct file *file, const char __user *buffer, siz 




static unsigned int serio_raw_poll(struct file *file, poll_table *wait)

static unsigned int serio_raw_poll(struct file *file, poll_table *wait)

{

{

	struct serio_raw_list *list = file->private_data;

	struct serio_raw_client *client = file->private_data;

	struct serio_raw *serio_raw = client->serio_raw;





	poll_wait(file, &list->serio_raw->wait, wait);

	poll_wait(file, &serio_raw->wait, wait);





	if (list->serio_raw->head != list->serio_raw->tail)

	if (serio_raw->head != serio_raw->tail)

		return POLLIN | POLLRDNORM;

		return POLLIN | POLLRDNORM;





	return 0;

	return 0;
@@ -252,16 +255,16 @@ static irqreturn_t serio_raw_interrupt(struct serio *serio, unsigned char data, 
					unsigned int dfl)

					unsigned int dfl)

{

{

	struct serio_raw *serio_raw = serio_get_drvdata(serio);

	struct serio_raw *serio_raw = serio_get_drvdata(serio);

	struct serio_raw_list *list;

	struct serio_raw_client *client;

	unsigned int head = serio_raw->head;

	unsigned int head = serio_raw->head;





	/* we are holding serio->lock here so we are prootected */

	/* we are holding serio->lock here so we are protected */

	serio_raw->queue[head] = data;

	serio_raw->queue[head] = data;

	head = (head + 1) % SERIO_RAW_QUEUE_LEN;

	head = (head + 1) % SERIO_RAW_QUEUE_LEN;

	if (likely(head != serio_raw->tail)) {

	if (likely(head != serio_raw->tail)) {

		serio_raw->head = head;

		serio_raw->head = head;

		list_for_each_entry(list, &serio_raw->list, node)

		list_for_each_entry(client, &serio_raw->client_list, node)

			kill_fasync(&list->fasync, SIGIO, POLL_IN);

			kill_fasync(&client->fasync, SIGIO, POLL_IN);

		wake_up_interruptible(&serio_raw->wait);

		wake_up_interruptible(&serio_raw->wait);

	}

	}
@@ -283,7 +286,7 @@ static int serio_raw_connect(struct serio *serio, struct serio_driver *drv) 
	snprintf(serio_raw->name, sizeof(serio_raw->name), "serio_raw%d", serio_raw_no++);

	snprintf(serio_raw->name, sizeof(serio_raw->name), "serio_raw%d", serio_raw_no++);

	kref_init(&serio_raw->kref);

	kref_init(&serio_raw->kref);

	serio_raw->serio = serio;

	serio_raw->serio = serio;

	INIT_LIST_HEAD(&serio_raw->list);

	INIT_LIST_HEAD(&serio_raw->client_list);

	init_waitqueue_head(&serio_raw->wait);

	init_waitqueue_head(&serio_raw->wait);





	serio_set_drvdata(serio, serio_raw);

	serio_set_drvdata(serio, serio_raw);