Commit 3c803e8e authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Commit the manual part of the input layer merge.

git did actually warn me about the fact that I hadn't actually done an
"update-cache" on these two files, but the warning was at the bottom of
a list of all the files that _did_ change in the merge, so I never
noticed.  My bad.
parent c47abbbf
Loading
Loading
Loading
Loading
+12 −19
Original line number Diff line number Diff line
@@ -17,11 +17,10 @@
#include <linux/init.h>
#include <linux/gameport.h>
#include <linux/wait.h>
#include <linux/completion.h>
#include <linux/sched.h>
#include <linux/smp_lock.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/kthread.h>

/*#include <asm/io.h>*/

@@ -238,8 +237,7 @@ struct gameport_event {
static DEFINE_SPINLOCK(gameport_event_lock);	/* protects gameport_event_list */
static LIST_HEAD(gameport_event_list);
static DECLARE_WAIT_QUEUE_HEAD(gameport_wait);
static DECLARE_COMPLETION(gameport_exited);
static int gameport_pid;
static struct task_struct *gameport_task;

static void gameport_queue_event(void *object, struct module *owner,
			      enum gameport_event_type event_type)
@@ -432,20 +430,15 @@ static struct gameport *gameport_get_pending_child(struct gameport *parent)

static int gameport_thread(void *nothing)
{
	lock_kernel();
	daemonize("kgameportd");
	allow_signal(SIGTERM);

	do {
		gameport_handle_events();
		wait_event_interruptible(gameport_wait, !list_empty(&gameport_event_list));
		wait_event_interruptible(gameport_wait,
			kthread_should_stop() || !list_empty(&gameport_event_list));
		try_to_freeze();
	} while (!signal_pending(current));
	} while (!kthread_should_stop());

	printk(KERN_DEBUG "gameport: kgameportd exiting\n");

	unlock_kernel();
	complete_and_exit(&gameport_exited, 0);
	return 0;
}


@@ -773,9 +766,10 @@ void gameport_close(struct gameport *gameport)

static int __init gameport_init(void)
{
	if (!(gameport_pid = kernel_thread(gameport_thread, NULL, CLONE_KERNEL))) {
	gameport_task = kthread_run(gameport_thread, NULL, "kgameportd");
	if (IS_ERR(gameport_task)) {
		printk(KERN_ERR "gameport: Failed to start kgameportd\n");
		return -1;
		return PTR_ERR(gameport_task);
	}

	gameport_bus.dev_attrs = gameport_device_attrs;
@@ -789,8 +783,7 @@ static int __init gameport_init(void)
static void __exit gameport_exit(void)
{
	bus_unregister(&gameport_bus);
	kill_proc(gameport_pid, SIGTERM, 1);
	wait_for_completion(&gameport_exited);
	kthread_stop(gameport_task);
}

module_init(gameport_init);
+62 −27
Original line number Diff line number Diff line
@@ -31,10 +31,9 @@
#include <linux/serio.h>
#include <linux/errno.h>
#include <linux/wait.h>
#include <linux/completion.h>
#include <linux/sched.h>
#include <linux/smp_lock.h>
#include <linux/slab.h>
#include <linux/kthread.h>

MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION("Serio abstraction core");
@@ -43,6 +42,7 @@ MODULE_LICENSE("GPL");
EXPORT_SYMBOL(serio_interrupt);
EXPORT_SYMBOL(__serio_register_port);
EXPORT_SYMBOL(serio_unregister_port);
EXPORT_SYMBOL(serio_unregister_child_port);
EXPORT_SYMBOL(__serio_unregister_port_delayed);
EXPORT_SYMBOL(__serio_register_driver);
EXPORT_SYMBOL(serio_unregister_driver);
@@ -68,6 +68,37 @@ static void serio_destroy_port(struct serio *serio);
static void serio_reconnect_port(struct serio *serio);
static void serio_disconnect_port(struct serio *serio);

static int serio_connect_driver(struct serio *serio, struct serio_driver *drv)
{
	int retval;

	down(&serio->drv_sem);
	retval = drv->connect(serio, drv);
	up(&serio->drv_sem);

	return retval;
}

static int serio_reconnect_driver(struct serio *serio)
{
	int retval = -1;

	down(&serio->drv_sem);
	if (serio->drv && serio->drv->reconnect)
		retval = serio->drv->reconnect(serio);
	up(&serio->drv_sem);

	return retval;
}

static void serio_disconnect_driver(struct serio *serio)
{
	down(&serio->drv_sem);
	if (serio->drv)
		serio->drv->disconnect(serio);
	up(&serio->drv_sem);
}

static int serio_match_port(const struct serio_device_id *ids, struct serio *serio)
{
	while (ids->type || ids->proto) {
@@ -91,7 +122,7 @@ static void serio_bind_driver(struct serio *serio, struct serio_driver *drv)

	if (serio_match_port(drv->id_table, serio)) {
		serio->dev.driver = &drv->driver;
		if (drv->connect(serio, drv)) {
		if (serio_connect_driver(serio, drv)) {
			serio->dev.driver = NULL;
			goto out;
		}
@@ -138,8 +169,7 @@ struct serio_event {
static DEFINE_SPINLOCK(serio_event_lock);	/* protects serio_event_list */
static LIST_HEAD(serio_event_list);
static DECLARE_WAIT_QUEUE_HEAD(serio_wait);
static DECLARE_COMPLETION(serio_exited);
static int serio_pid;
static struct task_struct *serio_task;

static void serio_queue_event(void *object, struct module *owner,
			      enum serio_event_type event_type)
@@ -337,20 +367,15 @@ static struct serio *serio_get_pending_child(struct serio *parent)

static int serio_thread(void *nothing)
{
	lock_kernel();
	daemonize("kseriod");
	allow_signal(SIGTERM);

	do {
		serio_handle_events();
		wait_event_interruptible(serio_wait, !list_empty(&serio_event_list));
		wait_event_interruptible(serio_wait,
			kthread_should_stop() || !list_empty(&serio_event_list));
		try_to_freeze();
	} while (!signal_pending(current));
	} while (!kthread_should_stop());

	printk(KERN_DEBUG "serio: kseriod exiting\n");

	unlock_kernel();
	complete_and_exit(&serio_exited, 0);
	return 0;
}


@@ -557,7 +582,7 @@ static void serio_destroy_port(struct serio *serio)
static void serio_reconnect_port(struct serio *serio)
{
	do {
		if (!serio->drv || !serio->drv->reconnect || serio->drv->reconnect(serio)) {
		if (serio_reconnect_driver(serio)) {
			serio_disconnect_port(serio);
			serio_find_driver(serio);
			/* Ok, old children are now gone, we are done */
@@ -629,6 +654,19 @@ void serio_unregister_port(struct serio *serio)
	up(&serio_sem);
}

/*
 * Safely unregisters child port if one is present.
 */
void serio_unregister_child_port(struct serio *serio)
{
	down(&serio_sem);
	if (serio->child) {
		serio_disconnect_port(serio->child);
		serio_destroy_port(serio->child);
	}
	up(&serio_sem);
}

/*
 * Submits register request to kseriod for subsequent execution.
 * Can be used when it is not obvious whether the serio_sem is
@@ -686,15 +724,14 @@ static int serio_driver_probe(struct device *dev)
	struct serio *serio = to_serio_port(dev);
	struct serio_driver *drv = to_serio_driver(dev->driver);

	return drv->connect(serio, drv);
	return serio_connect_driver(serio, drv);
}

static int serio_driver_remove(struct device *dev)
{
	struct serio *serio = to_serio_port(dev);
	struct serio_driver *drv = to_serio_driver(dev->driver);

	drv->disconnect(serio);
	serio_disconnect_driver(serio);
	return 0;
}

@@ -730,11 +767,9 @@ void serio_unregister_driver(struct serio_driver *drv)

static void serio_set_drv(struct serio *serio, struct serio_driver *drv)
{
	down(&serio->drv_sem);
	serio_pause_rx(serio);
	serio->drv = drv;
	serio_continue_rx(serio);
	up(&serio->drv_sem);
}

static int serio_bus_match(struct device *dev, struct device_driver *drv)
@@ -794,7 +829,7 @@ static int serio_resume(struct device *dev)
{
	struct serio *serio = to_serio_port(dev);

	if (!serio->drv || !serio->drv->reconnect || serio->drv->reconnect(serio)) {
	if (serio_reconnect_driver(serio)) {
		/*
		 * Driver re-probing can take a while, so better let kseriod
		 * deal with it.
@@ -848,9 +883,10 @@ irqreturn_t serio_interrupt(struct serio *serio,

static int __init serio_init(void)
{
	if (!(serio_pid = kernel_thread(serio_thread, NULL, CLONE_KERNEL))) {
	serio_task = kthread_run(serio_thread, NULL, "kseriod");
	if (IS_ERR(serio_task)) {
		printk(KERN_ERR "serio: Failed to start kseriod\n");
		return -1;
		return PTR_ERR(serio_task);
	}

	serio_bus.dev_attrs = serio_device_attrs;
@@ -866,8 +902,7 @@ static int __init serio_init(void)
static void __exit serio_exit(void)
{
	bus_unregister(&serio_bus);
	kill_proc(serio_pid, SIGTERM, 1);
	wait_for_completion(&serio_exited);
	kthread_stop(serio_task);
}

module_init(serio_init);