Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/dtor/input

* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/dtor/input: (24 commits)
  Input: ati_remote - use msec instead of jiffies
  Input: ati_remote - add missing input_sync()
  Input: ati_remote - relax permissions sysfs module parameters
  Input: ati_remote - make filter time a module parameter
  Input: atkbd - restore repeat rate when resuming
  Input: trackpoint - activate protocol when resuming
  Input: logips2pp - fix button mapping for MX300
  Input: keyboard - change to use kzalloc
  Input: serio/gameport - check whether driver core calls succeeded
  Input: spaceball - make 4000FLX Lefty work
  Input: keyboard - simplify emulate_raw() implementation
  Input: keyboard - remove static variable and clean up initialization
  Input: hiddev - use standard list implementation
  Input: add missing handler->start() call
  Input: HID - fix potential out-of-bound array access
  Input: fix list iteration in input_release_device()
  Input: iforce - add Trust Force Feedback Race Master support
  Input: iforce - check array bounds before accessing elements
  Input: libps2 - warn instead of oopsing when passed bad arguments
  Input: fm801-gp - fix use after free
  ...

drivers/char/keyboard.c

@@ -107,7 +107,6 @@ const int NR_TYPES = ARRAY_SIZE(max_vals);
 
 struct kbd_struct kbd_table[MAX_NR_CONSOLES];
 static struct kbd_struct *kbd = kbd_table;
-static struct kbd_struct kbd0;
 
 int spawnpid, spawnsig;
 
@@ -223,13 +222,13 @@ static void kd_nosound(unsigned long ignored)
 {
 	struct list_head *node;
 
-	list_for_each(node,&kbd_handler.h_list) {
+	list_for_each(node, &kbd_handler.h_list) {
 		struct input_handle *handle = to_handle_h(node);
 		if (test_bit(EV_SND, handle->dev->evbit)) {
 			if (test_bit(SND_TONE, handle->dev->sndbit))
-				input_event(handle->dev, EV_SND, SND_TONE, 0);
+				input_inject_event(handle, EV_SND, SND_TONE, 0);
 			if (test_bit(SND_BELL, handle->dev->sndbit))
-				input_event(handle->dev, EV_SND, SND_BELL, 0);
+				input_inject_event(handle, EV_SND, SND_BELL, 0);
 		}
 	}
 }
@@ -247,11 +246,11 @@ void kd_mksound(unsigned int hz, unsigned int ticks)
 			struct input_handle *handle = to_handle_h(node);
 			if (test_bit(EV_SND, handle->dev->evbit)) {
 				if (test_bit(SND_TONE, handle->dev->sndbit)) {
-					input_event(handle->dev, EV_SND, SND_TONE, hz);
+					input_inject_event(handle, EV_SND, SND_TONE, hz);
 					break;
 				}
 				if (test_bit(SND_BELL, handle->dev->sndbit)) {
-					input_event(handle->dev, EV_SND, SND_BELL, 1);
+					input_inject_event(handle, EV_SND, SND_BELL, 1);
 					break;
 				}
 			}
@@ -272,15 +271,15 @@ int kbd_rate(struct kbd_repeat *rep)
 	unsigned int d = 0;
 	unsigned int p = 0;
 
-	list_for_each(node,&kbd_handler.h_list) {
+	list_for_each(node, &kbd_handler.h_list) {
 		struct input_handle *handle = to_handle_h(node);
 		struct input_dev *dev = handle->dev;
 
 		if (test_bit(EV_REP, dev->evbit)) {
 			if (rep->delay > 0)
-				input_event(dev, EV_REP, REP_DELAY, rep->delay);
+				input_inject_event(handle, EV_REP, REP_DELAY, rep->delay);
 			if (rep->period > 0)
-				input_event(dev, EV_REP, REP_PERIOD, rep->period);
+				input_inject_event(handle, EV_REP, REP_PERIOD, rep->period);
 			d = dev->rep[REP_DELAY];
 			p = dev->rep[REP_PERIOD];
 		}
@@ -988,7 +987,7 @@ static inline unsigned char getleds(void)
  * interrupt routines for this thing allows us to easily mask
  * this when we don't want any of the above to happen.
  * This allows for easy and efficient race-condition prevention
- * for kbd_refresh_leds => input_event(dev, EV_LED, ...) => ...
+ * for kbd_start => input_inject_event(dev, EV_LED, ...) => ...
  */
 
 static void kbd_bh(unsigned long dummy)
@@ -998,11 +997,11 @@ static void kbd_bh(unsigned long dummy)
 
 	if (leds != ledstate) {
 		list_for_each(node, &kbd_handler.h_list) {
-			struct input_handle * handle = to_handle_h(node);
-			input_event(handle->dev, EV_LED, LED_SCROLLL, !!(leds & 0x01));
-			input_event(handle->dev, EV_LED, LED_NUML,    !!(leds & 0x02));
-			input_event(handle->dev, EV_LED, LED_CAPSL,   !!(leds & 0x04));
-			input_sync(handle->dev);
+			struct input_handle *handle = to_handle_h(node);
+			input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01));
+			input_inject_event(handle, EV_LED, LED_NUML,    !!(leds & 0x02));
+			input_inject_event(handle, EV_LED, LED_CAPSL,   !!(leds & 0x04));
+			input_inject_event(handle, EV_SYN, SYN_REPORT, 0);
 		}
 	}
 
@@ -1011,23 +1010,6 @@ static void kbd_bh(unsigned long dummy)
 
 DECLARE_TASKLET_DISABLED(keyboard_tasklet, kbd_bh, 0);
 
-/*
- * This allows a newly plugged keyboard to pick the LED state.
- */
-static void kbd_refresh_leds(struct input_handle *handle)
-{
-	unsigned char leds = ledstate;
-
-	tasklet_disable(&keyboard_tasklet);
-	if (leds != 0xff) {
-		input_event(handle->dev, EV_LED, LED_SCROLLL, !!(leds & 0x01));
-		input_event(handle->dev, EV_LED, LED_NUML,    !!(leds & 0x02));
-		input_event(handle->dev, EV_LED, LED_CAPSL,   !!(leds & 0x04));
-		input_sync(handle->dev);
-	}
-	tasklet_enable(&keyboard_tasklet);
-}
-
 #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\
     defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) ||\
     defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\
@@ -1043,7 +1025,7 @@ static const unsigned short x86_keycodes[256] =
 	 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
 	 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
 	 80, 81, 82, 83, 84,118, 86, 87, 88,115,120,119,121,112,123, 92,
-	284,285,309,298,312, 91,327,328,329,331,333,335,336,337,338,339,
+	284,285,309,  0,312, 91,327,328,329,331,333,335,336,337,338,339,
 	367,288,302,304,350, 89,334,326,267,126,268,269,125,347,348,349,
 	360,261,262,263,268,376,100,101,321,316,373,286,289,102,351,355,
 	103,104,105,275,287,279,306,106,274,107,294,364,358,363,362,361,
@@ -1065,38 +1047,55 @@ extern void sun_do_break(void);
 static int emulate_raw(struct vc_data *vc, unsigned int keycode,
 		       unsigned char up_flag)
 {
-	if (keycode > 255 || !x86_keycodes[keycode])
-		return -1;
+	int code;
 
 	switch (keycode) {
 		case KEY_PAUSE:
 			put_queue(vc, 0xe1);
 			put_queue(vc, 0x1d | up_flag);
 			put_queue(vc, 0x45 | up_flag);
-			return 0;
+			break;
+
 		case KEY_HANGEUL:
 			if (!up_flag)
 				put_queue(vc, 0xf2);
-			return 0;
+			break;
+
 		case KEY_HANJA:
 			if (!up_flag)
 				put_queue(vc, 0xf1);
-			return 0;
-	}
+			break;
 
-	if (keycode == KEY_SYSRQ && sysrq_alt) {
+		case KEY_SYSRQ:
+			/*
+			 * Real AT keyboards (that's what we're trying
+			 * to emulate here emit 0xe0 0x2a 0xe0 0x37 when
+			 * pressing PrtSc/SysRq alone, but simply 0x54
+			 * when pressing Alt+PrtSc/SysRq.
+			 */
+			if (sysrq_alt) {
 				put_queue(vc, 0x54 | up_flag);
-		return 0;
+			} else {
+				put_queue(vc, 0xe0);
+				put_queue(vc, 0x2a | up_flag);
+				put_queue(vc, 0xe0);
+				put_queue(vc, 0x37 | up_flag);
 			}
+			break;
 
-	if (x86_keycodes[keycode] & 0x100)
-		put_queue(vc, 0xe0);
+		default:
+			if (keycode > 255)
+				return -1;
 
-	put_queue(vc, (x86_keycodes[keycode] & 0x7f) | up_flag);
+			code = x86_keycodes[keycode];
+			if (!code)
+				return -1;
 
-	if (keycode == KEY_SYSRQ) {
+			if (code & 0x100)
 				put_queue(vc, 0xe0);
-		put_queue(vc, 0x37 | up_flag);
+			put_queue(vc, (code & 0x7f) | up_flag);
+
+			break;
 	}
 
 	return 0;
@@ -1298,16 +1297,15 @@ static struct input_handle *kbd_connect(struct input_handler *handler,
 	if (i == BTN_MISC && !test_bit(EV_SND, dev->evbit))
 		return NULL;
 
-	if (!(handle = kmalloc(sizeof(struct input_handle), GFP_KERNEL)))
+	handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
+	if (!handle)
 		return NULL;
-	memset(handle, 0, sizeof(struct input_handle));
 
 	handle->dev = dev;
 	handle->handler = handler;
 	handle->name = "kbd";
 
 	input_open_device(handle);
-	kbd_refresh_leds(handle);
 
 	return handle;
 }
@@ -1318,6 +1316,24 @@ static void kbd_disconnect(struct input_handle *handle)
 	kfree(handle);
 }
 
+/*
+ * Start keyboard handler on the new keyboard by refreshing LED state to
+ * match the rest of the system.
+ */
+static void kbd_start(struct input_handle *handle)
+{
+	unsigned char leds = ledstate;
+
+	tasklet_disable(&keyboard_tasklet);
+	if (leds != 0xff) {
+		input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01));
+		input_inject_event(handle, EV_LED, LED_NUML,    !!(leds & 0x02));
+		input_inject_event(handle, EV_LED, LED_CAPSL,   !!(leds & 0x04));
+		input_inject_event(handle, EV_SYN, SYN_REPORT, 0);
+	}
+	tasklet_enable(&keyboard_tasklet);
+}
+
 static struct input_device_id kbd_ids[] = {
 	{
                 .flags = INPUT_DEVICE_ID_MATCH_EVBIT,
@@ -1338,6 +1354,7 @@ static struct input_handler kbd_handler = {
 	.event		= kbd_event,
 	.connect	= kbd_connect,
 	.disconnect	= kbd_disconnect,
+	.start		= kbd_start,
 	.name		= "kbd",
 	.id_table	= kbd_ids,
 };
@@ -1346,15 +1363,15 @@ int __init kbd_init(void)
 {
 	int i;
 
-        kbd0.ledflagstate = kbd0.default_ledflagstate = KBD_DEFLEDS;
-        kbd0.ledmode = LED_SHOW_FLAGS;
-        kbd0.lockstate = KBD_DEFLOCK;
-        kbd0.slockstate = 0;
-        kbd0.modeflags = KBD_DEFMODE;
-        kbd0.kbdmode = VC_XLATE;
-
-        for (i = 0 ; i < MAX_NR_CONSOLES ; i++)
-                kbd_table[i] = kbd0;
+        for (i = 0; i < MAX_NR_CONSOLES; i++) {
+		kbd_table[i].ledflagstate = KBD_DEFLEDS;
+		kbd_table[i].default_ledflagstate = KBD_DEFLEDS;
+		kbd_table[i].ledmode = LED_SHOW_FLAGS;
+		kbd_table[i].lockstate = KBD_DEFLOCK;
+		kbd_table[i].slockstate = 0;
+		kbd_table[i].modeflags = KBD_DEFMODE;
+		kbd_table[i].kbdmode = VC_XLATE;
+	}
 
 	input_register_handler(&kbd_handler);
 

drivers/input/evdev.c

@@ -127,14 +127,10 @@ static int evdev_open(struct inode * inode, struct file * file)
 {
 	struct evdev_list *list;
 	int i = iminor(inode) - EVDEV_MINOR_BASE;
-	int accept_err;
 
 	if (i >= EVDEV_MINORS || !evdev_table[i] || !evdev_table[i]->exist)
 		return -ENODEV;
 
-	if ((accept_err = input_accept_process(&(evdev_table[i]->handle), file)))
-		return accept_err;
-
 	if (!(list = kzalloc(sizeof(struct evdev_list), GFP_KERNEL)))
 		return -ENOMEM;
 
@@ -260,7 +256,7 @@ static ssize_t evdev_write(struct file * file, const char __user * buffer, size_
 
 		if (evdev_event_from_user(buffer + retval, &event))
 			return -EFAULT;
-		input_event(list->evdev->handle.dev, event.type, event.code, event.value);
+		input_inject_event(&list->evdev->handle, event.type, event.code, event.value);
 		retval += evdev_event_size();
 	}
 
@@ -428,8 +424,8 @@ static long evdev_ioctl_handler(struct file *file, unsigned int cmd,
 			if (get_user(v, ip + 1))
 				return -EFAULT;
 
-			input_event(dev, EV_REP, REP_DELAY, u);
-			input_event(dev, EV_REP, REP_PERIOD, v);
+			input_inject_event(&evdev->handle, EV_REP, REP_DELAY, u);
+			input_inject_event(&evdev->handle, EV_REP, REP_PERIOD, v);
 
 			return 0;
 

drivers/input/gameport/fm801-gp.c

@@ -106,10 +106,10 @@ static int __devinit fm801_gp_probe(struct pci_dev *pci, const struct pci_device
 	gp->gameport = port;
 	gp->res_port = request_region(port->io, 0x10, "FM801 GP");
 	if (!gp->res_port) {
-		kfree(gp);
-		gameport_free_port(port);
 		printk(KERN_DEBUG "fm801-gp: unable to grab region 0x%x-0x%x\n",
 			port->io, port->io + 0x0f);
+		gameport_free_port(port);
+		kfree(gp);
 		return -EBUSY;
 	}
 

drivers/input/gameport/gameport.c

@@ -53,6 +53,7 @@ static LIST_HEAD(gameport_list);
 
 static struct bus_type gameport_bus;
 
+static void gameport_add_driver(struct gameport_driver *drv);
 static void gameport_add_port(struct gameport *gameport);
 static void gameport_destroy_port(struct gameport *gameport);
 static void gameport_reconnect_port(struct gameport *gameport);
@@ -211,8 +212,14 @@ static void gameport_release_driver(struct gameport *gameport)
 
 static void gameport_find_driver(struct gameport *gameport)
 {
+	int error;
+
 	down_write(&gameport_bus.subsys.rwsem);
-	device_attach(&gameport->dev);
+	error = device_attach(&gameport->dev);
+	if (error < 0)
+		printk(KERN_WARNING
+			"gameport: device_attach() failed for %s (%s), error: %d\n",
+			gameport->phys, gameport->name, error);
 	up_write(&gameport_bus.subsys.rwsem);
 }
 
@@ -316,7 +323,6 @@ static void gameport_remove_duplicate_events(struct gameport_event *event)
 	spin_unlock_irqrestore(&gameport_event_lock, flags);
 }
 
-
 static struct gameport_event *gameport_get_event(void)
 {
 	struct gameport_event *event;
@@ -342,7 +348,6 @@ static struct gameport_event *gameport_get_event(void)
 static void gameport_handle_event(void)
 {
 	struct gameport_event *event;
-	struct gameport_driver *gameport_drv;
 
 	mutex_lock(&gameport_mutex);
 
@@ -369,8 +374,7 @@ static void gameport_handle_event(void)
 				break;
 
 			case GAMEPORT_REGISTER_DRIVER:
-				gameport_drv = event->object;
-				driver_register(&gameport_drv->driver);
+				gameport_add_driver(event->object);
 				break;
 
 			default:
@@ -532,6 +536,7 @@ static void gameport_init_port(struct gameport *gameport)
 	if (gameport->parent)
 		gameport->dev.parent = &gameport->parent->dev;
 
+	INIT_LIST_HEAD(&gameport->node);
 	spin_lock_init(&gameport->timer_lock);
 	init_timer(&gameport->poll_timer);
 	gameport->poll_timer.function = gameport_run_poll_handler;
@@ -544,6 +549,8 @@ static void gameport_init_port(struct gameport *gameport)
  */
 static void gameport_add_port(struct gameport *gameport)
 {
+	int error;
+
 	if (gameport->parent)
 		gameport->parent->child = gameport;
 
@@ -558,7 +565,12 @@ static void gameport_add_port(struct gameport *gameport)
 		printk(KERN_INFO "gameport: %s is %s, speed %dkHz\n",
 			gameport->name, gameport->phys, gameport->speed);
 
-	device_add(&gameport->dev);
+	error = device_add(&gameport->dev);
+	if (error)
+		printk(KERN_ERR
+			"gameport: device_add() failed for %s (%s), error: %d\n",
+			gameport->phys, gameport->name, error);
+	else
 		gameport->registered = 1;
 }
 
@@ -583,10 +595,11 @@ static void gameport_destroy_port(struct gameport *gameport)
 
 	if (gameport->registered) {
 		device_del(&gameport->dev);
-		list_del_init(&gameport->node);
 		gameport->registered = 0;
 	}
 
+	list_del_init(&gameport->node);
+
 	gameport_remove_pending_events(gameport);
 	put_device(&gameport->dev);
 }
@@ -709,6 +722,17 @@ static struct bus_type gameport_bus = {
 	.remove	= gameport_driver_remove,
 };
 
+static void gameport_add_driver(struct gameport_driver *drv)
+{
+	int error;
+
+	error = driver_register(&drv->driver);
+	if (error)
+		printk(KERN_ERR
+			"gameport: driver_register() failed for %s, error: %d\n",
+			drv->driver.name, error);
+}
+
 void __gameport_register_driver(struct gameport_driver *drv, struct module *owner)
 {
 	drv->driver.bus = &gameport_bus;
@@ -778,16 +802,24 @@ void gameport_close(struct gameport *gameport)
 
 static int __init gameport_init(void)
 {
-	gameport_task = kthread_run(gameport_thread, NULL, "kgameportd");
-	if (IS_ERR(gameport_task)) {
-		printk(KERN_ERR "gameport: Failed to start kgameportd\n");
-		return PTR_ERR(gameport_task);
-	}
+	int error;
 
 	gameport_bus.dev_attrs = gameport_device_attrs;
 	gameport_bus.drv_attrs = gameport_driver_attrs;
 	gameport_bus.match = gameport_bus_match;
-	bus_register(&gameport_bus);
+	error = bus_register(&gameport_bus);
+	if (error) {
+		printk(KERN_ERR "gameport: failed to register gameport bus, error: %d\n", error);
+		return error;
+	}
+
+	gameport_task = kthread_run(gameport_thread, NULL, "kgameportd");
+	if (IS_ERR(gameport_task)) {
+		bus_unregister(&gameport_bus);
+		error = PTR_ERR(gameport_task);
+		printk(KERN_ERR "gameport: Failed to start kgameportd, error: %d\n", error);
+		return error;
+	}
 
 	return 0;
 }

drivers/input/input.c

@@ -35,6 +35,16 @@ static LIST_HEAD(input_handler_list);
 
 static struct input_handler *input_table[8];
 
+/**
+ * input_event() - report new input event
+ * @handle: device that generated the event
+ * @type: type of the event
+ * @code: event code
+ * @value: value of the event
+ *
+ * This function should be used by drivers implementing various input devices
+ * See also input_inject_event()
+ */
 void input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
 {
 	struct input_handle *handle;
@@ -183,6 +193,23 @@ void input_event(struct input_dev *dev, unsigned int type, unsigned int code, in
 }
 EXPORT_SYMBOL(input_event);
 
+/**
+ * input_inject_event() - send input event from input handler
+ * @handle: input handle to send event through
+ * @type: type of the event
+ * @code: event code
+ * @value: value of the event
+ *
+ * Similar to input_event() but will ignore event if device is "grabbed" and handle
+ * injecting event is not the one that owns the device.
+ */
+void input_inject_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
+{
+	if (!handle->dev->grab || handle->dev->grab == handle)
+		input_event(handle->dev, type, code, value);
+}
+EXPORT_SYMBOL(input_inject_event);
+
 static void input_repeat_key(unsigned long data)
 {
 	struct input_dev *dev = (void *) data;
@@ -197,15 +224,6 @@ static void input_repeat_key(unsigned long data)
 		mod_timer(&dev->timer, jiffies + msecs_to_jiffies(dev->rep[REP_PERIOD]));
 }
 
-int input_accept_process(struct input_handle *handle, struct file *file)
-{
-	if (handle->dev->accept)
-		return handle->dev->accept(handle->dev, file);
-
-	return 0;
-}
-EXPORT_SYMBOL(input_accept_process);
-
 int input_grab_device(struct input_handle *handle)
 {
 	if (handle->dev->grab)
@@ -218,8 +236,15 @@ EXPORT_SYMBOL(input_grab_device);
 
 void input_release_device(struct input_handle *handle)
 {
-	if (handle->dev->grab == handle)
-		handle->dev->grab = NULL;
+	struct input_dev *dev = handle->dev;
+
+	if (dev->grab == handle) {
+		dev->grab = NULL;
+
+		list_for_each_entry(handle, &dev->h_list, d_node)
+			if (handle->handler->start)
+				handle->handler->start(handle);
+	}
 }
 EXPORT_SYMBOL(input_release_device);
 
@@ -963,8 +988,11 @@ int input_register_device(struct input_dev *dev)
 	list_for_each_entry(handler, &input_handler_list, node)
 		if (!handler->blacklist || !input_match_device(handler->blacklist, dev))
 			if ((id = input_match_device(handler->id_table, dev)))
-				if ((handle = handler->connect(handler, dev, id)))
+				if ((handle = handler->connect(handler, dev, id))) {
 					input_link_handle(handle);
+					if (handler->start)
+						handler->start(handle);
+				}
 
 	input_wakeup_procfs_readers();
 
@@ -1028,8 +1056,11 @@ void input_register_handler(struct input_handler *handler)
 	list_for_each_entry(dev, &input_dev_list, node)
 		if (!handler->blacklist || !input_match_device(handler->blacklist, dev))
 			if ((id = input_match_device(handler->id_table, dev)))
-				if ((handle = handler->connect(handler, dev, id)))
+				if ((handle = handler->connect(handler, dev, id))) {
 					input_link_handle(handle);
+					if (handler->start)
+						handler->start(handle);
+				}
 
 	input_wakeup_procfs_readers();
 }

drivers/input/joystick/iforce/iforce-main.c

@@ -79,6 +79,7 @@ static struct iforce_device iforce_device[] = {
 	{ 0x06f8, 0x0001, "Guillemot Race Leader Force Feedback",	btn_wheel, abs_wheel, ff_iforce }, //?
 	{ 0x06f8, 0x0004, "Guillemot Force Feedback Racing Wheel",	btn_wheel, abs_wheel, ff_iforce }, //?
 	{ 0x06f8, 0x0004, "Gullemot Jet Leader 3D",			btn_joystick, abs_joystick, ff_iforce }, //?
+	{ 0x06d6, 0x29bc, "Trust Force Feedback Race Master",		btn_wheel, abs_wheel, ff_iforce },
 	{ 0x0000, 0x0000, "Unknown I-Force Device [%04x:%04x]",		btn_joystick, abs_joystick, ff_iforce }
 };
 
@@ -222,22 +223,22 @@ static int iforce_erase_effect(struct input_dev *dev, int effect_id)
 	int err = 0;
 	struct iforce_core_effect* core_effect;
 
-	/* Check who is trying to erase this effect */
-	if (iforce->core_effects[effect_id].owner != current->pid) {
-		printk(KERN_WARNING "iforce-main.c: %d tried to erase an effect belonging to %d\n", current->pid, iforce->core_effects[effect_id].owner);
-		return -EACCES;
-	}
-
 	if (effect_id < 0 || effect_id >= FF_EFFECTS_MAX)
 		return -EINVAL;
 
-	core_effect = iforce->core_effects + effect_id;
+	core_effect = &iforce->core_effects[effect_id];
+
+	/* Check who is trying to erase this effect */
+	if (core_effect->owner != current->pid) {
+		printk(KERN_WARNING "iforce-main.c: %d tried to erase an effect belonging to %d\n", current->pid, core_effect->owner);
+		return -EACCES;
+	}
 
 	if (test_bit(FF_MOD1_IS_USED, core_effect->flags))
-		err = release_resource(&(iforce->core_effects[effect_id].mod1_chunk));
+		err = release_resource(&core_effect->mod1_chunk);
 
 	if (!err && test_bit(FF_MOD2_IS_USED, core_effect->flags))
-		err = release_resource(&(iforce->core_effects[effect_id].mod2_chunk));
+		err = release_resource(&core_effect->mod2_chunk);
 
 	/*TODO: remember to change that if more FF_MOD* bits are added */
 	core_effect->flags[0] = 0;

drivers/input/joystick/spaceball.c

@@ -50,7 +50,7 @@ MODULE_LICENSE("GPL");
  */
 
 #define SPACEBALL_MAX_LENGTH	128
-#define SPACEBALL_MAX_ID	8
+#define SPACEBALL_MAX_ID	9
 
 #define SPACEBALL_1003      1
 #define SPACEBALL_2003B     3

drivers/input/keyboard/atkbd.c

@@ -482,13 +482,7 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
 	return IRQ_HANDLED;
 }
 
-/*
- * atkbd_event_work() is used to complete processing of events that
- * can not be processed by input_event() which is often called from
- * interrupt context.
- */
-
-static void atkbd_event_work(void *data)
+static int atkbd_set_repeat_rate(struct atkbd *atkbd)
 {
 	const short period[32] =
 		{ 33,  37,  42,  46,  50,  54,  58,  63,  67,  75,  83,  92, 100, 109, 116, 125,
@@ -496,18 +490,32 @@ static void atkbd_event_work(void *data)
 	const short delay[4] =
 		{ 250, 500, 750, 1000 };
 
-	struct atkbd *atkbd = data;
 	struct input_dev *dev = atkbd->dev;
-	unsigned char param[2];
-	int i, j;
+	unsigned char param;
+	int i = 0, j = 0;
 
-	mutex_lock(&atkbd->event_mutex);
+	while (i < ARRAY_SIZE(period) - 1 && period[i] < dev->rep[REP_PERIOD])
+		i++;
+	dev->rep[REP_PERIOD] = period[i];
+
+	while (j < ARRAY_SIZE(period) - 1 && delay[j] < dev->rep[REP_DELAY])
+		j++;
+	dev->rep[REP_DELAY] = delay[j];
+
+	param = i | (j << 5);
+	return ps2_command(&atkbd->ps2dev, &param, ATKBD_CMD_SETREP);
+}
+
+static int atkbd_set_leds(struct atkbd *atkbd)
+{
+	struct input_dev *dev = atkbd->dev;
+	unsigned char param[2];
 
-	if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask)) {
 	param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0)
 		 | (test_bit(LED_NUML,    dev->led) ? 2 : 0)
 		 | (test_bit(LED_CAPSL,   dev->led) ? 4 : 0);
-		ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS);
+	if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS))
+		return -1;
 
 	if (atkbd->extra) {
 		param[0] = 0;
@@ -516,21 +524,30 @@ static void atkbd_event_work(void *data)
 			 | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0)
 			 | (test_bit(LED_MISC,    dev->led) ? 0x10 : 0)
 			 | (test_bit(LED_MUTE,    dev->led) ? 0x20 : 0);
-			ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS);
-		}
+		if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS))
+			return -1;
 	}
 
-	if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask)) {
-		i = j = 0;
-		while (i < 31 && period[i] < dev->rep[REP_PERIOD])
-			i++;
-		while (j < 3 && delay[j] < dev->rep[REP_DELAY])
-			j++;
-		dev->rep[REP_PERIOD] = period[i];
-		dev->rep[REP_DELAY] = delay[j];
-		param[0] = i | (j << 5);
-		ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETREP);
-	}
+	return 0;
+}
+
+/*
+ * atkbd_event_work() is used to complete processing of events that
+ * can not be processed by input_event() which is often called from
+ * interrupt context.
+ */
+
+static void atkbd_event_work(void *data)
+{
+	struct atkbd *atkbd = data;
+
+	mutex_lock(&atkbd->event_mutex);
+
+	if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask))
+		atkbd_set_leds(atkbd);
+
+	if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask))
+		atkbd_set_repeat_rate(atkbd);
 
 	mutex_unlock(&atkbd->event_mutex);
 }
@@ -975,7 +992,6 @@ static int atkbd_reconnect(struct serio *serio)
 {
 	struct atkbd *atkbd = serio_get_drvdata(serio);
 	struct serio_driver *drv = serio->drv;
-	unsigned char param[1];
 
 	if (!atkbd || !drv) {
 		printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n");
@@ -985,10 +1001,6 @@ static int atkbd_reconnect(struct serio *serio)
 	atkbd_disable(atkbd);
 
 	if (atkbd->write) {
-		param[0] = (test_bit(LED_SCROLLL, atkbd->dev->led) ? 1 : 0)
-		         | (test_bit(LED_NUML,    atkbd->dev->led) ? 2 : 0)
-		         | (test_bit(LED_CAPSL,   atkbd->dev->led) ? 4 : 0);
-
 		if (atkbd_probe(atkbd))
 			return -1;
 		if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra))
@@ -996,8 +1008,13 @@ static int atkbd_reconnect(struct serio *serio)
 
 		atkbd_activate(atkbd);
 
-		if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS))
-			return -1;
+/*
+ * Restore repeat rate and LEDs (that were reset by atkbd_activate)
+ * to pre-resume state
+ */
+		if (!atkbd->softrepeat)
+			atkbd_set_repeat_rate(atkbd);
+		atkbd_set_leds(atkbd);
 	}
 
 	atkbd_enable(atkbd);

drivers/input/misc/wistron_btns.c

@@ -94,7 +94,7 @@ static void call_bios(struct regs *regs)
 
 static ssize_t __init locate_wistron_bios(void __iomem *base)
 {
-	static const unsigned char __initdata signature[] =
+	static unsigned char __initdata signature[] =
 		{ 0x42, 0x21, 0x55, 0x30 };
 	ssize_t offset;
 
@@ -259,11 +259,11 @@ static int __init dmi_matched(struct dmi_system_id *dmi)
 	return 1;
 }
 
-static struct key_entry keymap_empty[] = {
+static struct key_entry keymap_empty[] __initdata = {
 	{ KE_END, 0 }
 };
 
-static struct key_entry keymap_fs_amilo_pro_v2000[] = {
+static struct key_entry keymap_fs_amilo_pro_v2000[] __initdata = {
 	{ KE_KEY,  0x01, KEY_HELP },
 	{ KE_KEY,  0x11, KEY_PROG1 },
 	{ KE_KEY,  0x12, KEY_PROG2 },
@@ -273,7 +273,7 @@ static struct key_entry keymap_fs_amilo_pro_v2000[] = {
 	{ KE_END,  0 }
 };
 
-static struct key_entry keymap_fujitsu_n3510[] = {
+static struct key_entry keymap_fujitsu_n3510[] __initdata = {
 	{ KE_KEY, 0x11, KEY_PROG1 },
 	{ KE_KEY, 0x12, KEY_PROG2 },
 	{ KE_KEY, 0x36, KEY_WWW },
@@ -285,7 +285,7 @@ static struct key_entry keymap_fujitsu_n3510[] = {
 	{ KE_END, 0 }
 };
 
-static struct key_entry keymap_wistron_ms2111[] = {
+static struct key_entry keymap_wistron_ms2111[] __initdata = {
 	{ KE_KEY,  0x11, KEY_PROG1 },
 	{ KE_KEY,  0x12, KEY_PROG2 },
 	{ KE_KEY,  0x13, KEY_PROG3 },
@@ -294,7 +294,7 @@ static struct key_entry keymap_wistron_ms2111[] = {
 	{ KE_END,  0 }
 };
 
-static struct key_entry keymap_wistron_ms2141[] = {
+static struct key_entry keymap_wistron_ms2141[] __initdata = {
 	{ KE_KEY,  0x11, KEY_PROG1 },
 	{ KE_KEY,  0x12, KEY_PROG2 },
 	{ KE_WIFI, 0x30, 0 },
@@ -307,7 +307,7 @@ static struct key_entry keymap_wistron_ms2141[] = {
 	{ KE_END,  0 }
 };
 
-static struct key_entry keymap_acer_aspire_1500[] = {
+static struct key_entry keymap_acer_aspire_1500[] __initdata = {
 	{ KE_KEY, 0x11, KEY_PROG1 },
 	{ KE_KEY, 0x12, KEY_PROG2 },
 	{ KE_WIFI, 0x30, 0 },
@@ -317,7 +317,7 @@ static struct key_entry keymap_acer_aspire_1500[] = {
 	{ KE_END, 0 }
 };
 
-static struct key_entry keymap_acer_travelmate_240[] = {
+static struct key_entry keymap_acer_travelmate_240[] __initdata = {
 	{ KE_KEY, 0x31, KEY_MAIL },
 	{ KE_KEY, 0x36, KEY_WWW },
 	{ KE_KEY, 0x11, KEY_PROG1 },
@@ -327,7 +327,7 @@ static struct key_entry keymap_acer_travelmate_240[] = {
 	{ KE_END, 0 }
 };
 
-static struct key_entry keymap_aopen_1559as[] = {
+static struct key_entry keymap_aopen_1559as[] __initdata = {
 	{ KE_KEY,  0x01, KEY_HELP },
 	{ KE_KEY,  0x06, KEY_PROG3 },
 	{ KE_KEY,  0x11, KEY_PROG1 },
@@ -343,7 +343,7 @@ static struct key_entry keymap_aopen_1559as[] = {
  * a list of buttons and their key codes (reported when loading this module
  * with force=1) and the output of dmidecode to $MODULE_AUTHOR.
  */
-static struct dmi_system_id dmi_ids[] = {
+static struct dmi_system_id dmi_ids[] __initdata = {
 	{
 		.callback = dmi_matched,
 		.ident = "Fujitsu-Siemens Amilo Pro V2000",

drivers/input/mouse/logips2pp.c

@@ -238,8 +238,7 @@ static struct ps2pp_info *get_model_info(unsigned char model)
 		{ 100,	PS2PP_KIND_MX,					/* MX510 */
 				PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN |
 				PS2PP_EXTRA_BTN | PS2PP_NAV_BTN },
-		{ 111,  PS2PP_KIND_MX,					/* MX300 */
-				PS2PP_WHEEL | PS2PP_EXTRA_BTN | PS2PP_TASK_BTN },
+		{ 111,  PS2PP_KIND_MX,	PS2PP_WHEEL | PS2PP_SIDE_BTN },	/* MX300 reports task button as side */
 		{ 112,	PS2PP_KIND_MX,					/* MX500 */
 				PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN |
 				PS2PP_EXTRA_BTN | PS2PP_NAV_BTN },

drivers/input/mouse/trackpoint.c

@@ -183,21 +183,26 @@ static struct attribute_group trackpoint_attr_group = {
 	.attrs = trackpoint_attrs,
 };
 
-static void trackpoint_disconnect(struct psmouse *psmouse)
+static int trackpoint_start_protocol(struct psmouse *psmouse, unsigned char *firmware_id)
 {
-	sysfs_remove_group(&psmouse->ps2dev.serio->dev.kobj, &trackpoint_attr_group);
+	unsigned char param[2] = { 0 };
 
-	kfree(psmouse->private);
-	psmouse->private = NULL;
+	if (ps2_command(&psmouse->ps2dev, param, MAKE_PS2_CMD(0, 2, TP_READ_ID)))
+		return -1;
+
+	if (param[0] != TP_MAGIC_IDENT)
+		return -1;
+
+	if (firmware_id)
+		*firmware_id = param[1];
+
+	return 0;
 }
 
 static int trackpoint_sync(struct psmouse *psmouse)
 {
-	unsigned char toggle;
 	struct trackpoint_data *tp = psmouse->private;
-
-	if (!tp)
-		return -1;
+	unsigned char toggle;
 
 	/* Disable features that may make device unusable with this driver */
 	trackpoint_read(&psmouse->ps2dev, TP_TOGGLE_TWOHAND, &toggle);
@@ -263,27 +268,38 @@ static void trackpoint_defaults(struct trackpoint_data *tp)
 	tp->ext_dev = TP_DEF_EXT_DEV;
 }
 
+static void trackpoint_disconnect(struct psmouse *psmouse)
+{
+	sysfs_remove_group(&psmouse->ps2dev.serio->dev.kobj, &trackpoint_attr_group);
+
+	kfree(psmouse->private);
+	psmouse->private = NULL;
+}
+
+static int trackpoint_reconnect(struct psmouse *psmouse)
+{
+	if (trackpoint_start_protocol(psmouse, NULL))
+		return -1;
+
+	if (trackpoint_sync(psmouse))
+		return -1;
+
+	return 0;
+}
+
 int trackpoint_detect(struct psmouse *psmouse, int set_properties)
 {
 	struct trackpoint_data *priv;
 	struct ps2dev *ps2dev = &psmouse->ps2dev;
 	unsigned char firmware_id;
 	unsigned char button_info;
-	unsigned char param[2];
-
-	param[0] = param[1] = 0;
 
-	if (ps2_command(ps2dev, param, MAKE_PS2_CMD(0, 2, TP_READ_ID)))
-		return -1;
-
-	if (param[0] != TP_MAGIC_IDENT)
+	if (trackpoint_start_protocol(psmouse, &firmware_id))
 		return -1;
 
 	if (!set_properties)
 		return 0;
 
-	firmware_id = param[1];
-
 	if (trackpoint_read(&psmouse->ps2dev, TP_EXT_BTN, &button_info)) {
 		printk(KERN_WARNING "trackpoint.c: failed to get extended button data\n");
 		button_info = 0;
@@ -296,7 +312,7 @@ int trackpoint_detect(struct psmouse *psmouse, int set_properties)
 	psmouse->vendor = "IBM";
 	psmouse->name = "TrackPoint";
 
-	psmouse->reconnect = trackpoint_sync;
+	psmouse->reconnect = trackpoint_reconnect;
 	psmouse->disconnect = trackpoint_disconnect;
 
 	trackpoint_defaults(priv);

drivers/input/serio/libps2.c

@@ -177,6 +177,11 @@ int ps2_command(struct ps2dev *ps2dev, unsigned char *param, int command)
 		return -1;
 	}
 
+	if (send && !param) {
+		WARN_ON(1);
+		return -1;
+	}
+
 	mutex_lock_nested(&ps2dev->cmd_mutex, SINGLE_DEPTH_NESTING);
 
 	serio_pause_rx(ps2dev->serio);

drivers/input/serio/serio.c

@@ -62,6 +62,7 @@ static LIST_HEAD(serio_list);
 
 static struct bus_type serio_bus;
 
+static void serio_add_driver(struct serio_driver *drv);
 static void serio_add_port(struct serio *serio);
 static void serio_destroy_port(struct serio *serio);
 static void serio_reconnect_port(struct serio *serio);
@@ -140,8 +141,14 @@ static void serio_release_driver(struct serio *serio)
 
 static void serio_find_driver(struct serio *serio)
 {
+	int error;
+
 	down_write(&serio_bus.subsys.rwsem);
-	device_attach(&serio->dev);
+	error = device_attach(&serio->dev);
+	if (error < 0)
+		printk(KERN_WARNING
+			"serio: device_attach() failed for %s (%s), error: %d\n",
+			serio->phys, serio->name, error);
 	up_write(&serio_bus.subsys.rwsem);
 }
 
@@ -272,7 +279,6 @@ static struct serio_event *serio_get_event(void)
 static void serio_handle_event(void)
 {
 	struct serio_event *event;
-	struct serio_driver *serio_drv;
 
 	mutex_lock(&serio_mutex);
 
@@ -304,8 +310,7 @@ static void serio_handle_event(void)
 				break;
 
 			case SERIO_REGISTER_DRIVER:
-				serio_drv = event->object;
-				driver_register(&serio_drv->driver);
+				serio_add_driver(event->object);
 				break;
 
 			default:
@@ -525,6 +530,7 @@ static void serio_init_port(struct serio *serio)
 
 	__module_get(THIS_MODULE);
 
+	INIT_LIST_HEAD(&serio->node);
 	spin_lock_init(&serio->lock);
 	mutex_init(&serio->drv_mutex);
 	device_initialize(&serio->dev);
@@ -542,6 +548,8 @@ static void serio_init_port(struct serio *serio)
  */
 static void serio_add_port(struct serio *serio)
 {
+	int error;
+
 	if (serio->parent) {
 		serio_pause_rx(serio->parent);
 		serio->parent->child = serio;
@@ -551,9 +559,19 @@ static void serio_add_port(struct serio *serio)
 	list_add_tail(&serio->node, &serio_list);
 	if (serio->start)
 		serio->start(serio);
-	device_add(&serio->dev);
-	sysfs_create_group(&serio->dev.kobj, &serio_id_attr_group);
+	error = device_add(&serio->dev);
+	if (error)
+		printk(KERN_ERR
+			"serio: device_add() failed for %s (%s), error: %d\n",
+			serio->phys, serio->name, error);
+	else {
 		serio->registered = 1;
+		error = sysfs_create_group(&serio->dev.kobj, &serio_id_attr_group);
+		if (error)
+			printk(KERN_ERR
+				"serio: sysfs_create_group() failed for %s (%s), error: %d\n",
+				serio->phys, serio->name, error);
+	}
 }
 
 /*
@@ -583,10 +601,10 @@ static void serio_destroy_port(struct serio *serio)
 	if (serio->registered) {
 		sysfs_remove_group(&serio->dev.kobj, &serio_id_attr_group);
 		device_del(&serio->dev);
-		list_del_init(&serio->node);
 		serio->registered = 0;
 	}
 
+	list_del_init(&serio->node);
 	serio_remove_pending_events(serio);
 	put_device(&serio->dev);
 }
@@ -756,6 +774,17 @@ static struct bus_type serio_bus = {
 	.remove = serio_driver_remove,
 };
 
+static void serio_add_driver(struct serio_driver *drv)
+{
+	int error;
+
+	error = driver_register(&drv->driver);
+	if (error)
+		printk(KERN_ERR
+			"serio: driver_register() failed for %s, error: %d\n",
+			drv->driver.name, error);
+}
+
 void __serio_register_driver(struct serio_driver *drv, struct module *owner)
 {
 	drv->driver.bus = &serio_bus;
@@ -903,18 +932,26 @@ irqreturn_t serio_interrupt(struct serio *serio,
 
 static int __init serio_init(void)
 {
-	serio_task = kthread_run(serio_thread, NULL, "kseriod");
-	if (IS_ERR(serio_task)) {
-		printk(KERN_ERR "serio: Failed to start kseriod\n");
-		return PTR_ERR(serio_task);
-	}
+	int error;
 
 	serio_bus.dev_attrs = serio_device_attrs;
 	serio_bus.drv_attrs = serio_driver_attrs;
 	serio_bus.match = serio_bus_match;
 	serio_bus.uevent = serio_uevent;
 	serio_bus.resume = serio_resume;
-	bus_register(&serio_bus);
+	error = bus_register(&serio_bus);
+	if (error) {
+		printk(KERN_ERR "serio: failed to register serio bus, error: %d\n", error);
+		return error;
+	}
+
+	serio_task = kthread_run(serio_thread, NULL, "kseriod");
+	if (IS_ERR(serio_task)) {
+		bus_unregister(&serio_bus);
+		error = PTR_ERR(serio_task);
+		printk(KERN_ERR "serio: Failed to start kseriod, error: %d\n", error);
+		return error;
+	}
 
 	return 0;
 }

drivers/usb/input/ati_remote.c

@@ -111,14 +111,28 @@
 #define NAME_BUFSIZE      80    /* size of product name, path buffers */
 #define DATA_BUFSIZE      63    /* size of URB data buffers */
 
+/*
+ * Duplicate event filtering time.
+ * Sequential, identical KIND_FILTERED inputs with less than
+ * FILTER_TIME milliseconds between them are considered as repeat
+ * events. The hardware generates 5 events for the first keypress
+ * and we have to take this into account for an accurate repeat
+ * behaviour.
+ */
+#define FILTER_TIME	60 /* msec */
+
 static unsigned long channel_mask;
-module_param(channel_mask, ulong, 0444);
+module_param(channel_mask, ulong, 0644);
 MODULE_PARM_DESC(channel_mask, "Bitmask of remote control channels to ignore");
 
 static int debug;
-module_param(debug, int, 0444);
+module_param(debug, int, 0644);
 MODULE_PARM_DESC(debug, "Enable extra debug messages and information");
 
+static int repeat_filter = FILTER_TIME;
+module_param(repeat_filter, int, 0644);
+MODULE_PARM_DESC(repeat_filter, "Repeat filter time, default = 60 msec");
+
 #define dbginfo(dev, format, arg...) do { if (debug) dev_info(dev , format , ## arg); } while (0)
 #undef err
 #define err(format, arg...) printk(KERN_ERR format , ## arg)
@@ -143,18 +157,6 @@ MODULE_DEVICE_TABLE(usb, ati_remote_table);
 static char init1[] = { 0x01, 0x00, 0x20, 0x14 };
 static char init2[] = { 0x01, 0x00, 0x20, 0x14, 0x20, 0x20, 0x20 };
 
-/* Acceleration curve for directional control pad */
-static const char accel[] = { 1, 2, 4, 6, 9, 13, 20 };
-
-/* Duplicate event filtering time.
- * Sequential, identical KIND_FILTERED inputs with less than
- * FILTER_TIME jiffies between them are considered as repeat
- * events. The hardware generates 5 events for the first keypress
- * and we have to take this into account for an accurate repeat
- * behaviour.
- */
-#define FILTER_TIME 60 /* msec */
-
 struct ati_remote {
 	struct input_dev *idev;
 	struct usb_device *udev;
@@ -411,6 +413,43 @@ static int ati_remote_event_lookup(int rem, unsigned char d1, unsigned char d2)
 	return -1;
 }
 
+/*
+ *	ati_remote_compute_accel
+ *
+ * Implements acceleration curve for directional control pad
+ * If elapsed time since last event is > 1/4 second, user "stopped",
+ * so reset acceleration. Otherwise, user is probably holding the control
+ * pad down, so we increase acceleration, ramping up over two seconds to
+ * a maximum speed.
+ */
+static int ati_remote_compute_accel(struct ati_remote *ati_remote)
+{
+	static const char accel[] = { 1, 2, 4, 6, 9, 13, 20 };
+	unsigned long now = jiffies;
+	int acc;
+
+	if (time_after(now, ati_remote->old_jiffies + msecs_to_jiffies(250))) {
+		acc = 1;
+		ati_remote->acc_jiffies = now;
+	}
+	else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(125)))
+		acc = accel[0];
+	else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(250)))
+		acc = accel[1];
+	else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(500)))
+		acc = accel[2];
+	else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(1000)))
+		acc = accel[3];
+	else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(1500)))
+		acc = accel[4];
+	else if (time_before(now, ati_remote->acc_jiffies + msecs_to_jiffies(2000)))
+		acc = accel[5];
+	else
+		acc = accel[6];
+
+	return acc;
+}
+
 /*
  *	ati_remote_report_input
  */
@@ -464,9 +503,9 @@ static void ati_remote_input_report(struct urb *urb, struct pt_regs *regs)
 
 	if (ati_remote_tbl[index].kind == KIND_FILTERED) {
 		/* Filter duplicate events which happen "too close" together. */
-		if ((ati_remote->old_data[0] == data[1]) &&
-			(ati_remote->old_data[1] == data[2]) &&
-			time_before(jiffies, ati_remote->old_jiffies + msecs_to_jiffies(FILTER_TIME))) {
+		if (ati_remote->old_data[0] == data[1] &&
+		    ati_remote->old_data[1] == data[2] &&
+		    time_before(jiffies, ati_remote->old_jiffies + msecs_to_jiffies(repeat_filter))) {
 			ati_remote->repeat_count++;
 		} else {
 			ati_remote->repeat_count = 0;
@@ -476,42 +515,27 @@ static void ati_remote_input_report(struct urb *urb, struct pt_regs *regs)
 		ati_remote->old_data[1] = data[2];
 		ati_remote->old_jiffies = jiffies;
 
-		if ((ati_remote->repeat_count > 0)
-		    && (ati_remote->repeat_count < 5))
+		if (ati_remote->repeat_count > 0 &&
+		    ati_remote->repeat_count < 5)
 			return;
 
 
 		input_regs(dev, regs);
 		input_event(dev, ati_remote_tbl[index].type,
 			ati_remote_tbl[index].code, 1);
+		input_sync(dev);
 		input_event(dev, ati_remote_tbl[index].type,
 			ati_remote_tbl[index].code, 0);
 		input_sync(dev);
 
-		return;
-	}
+	} else {
 
 		/*
 		 * Other event kinds are from the directional control pad, and have an
 		 * acceleration factor applied to them.  Without this acceleration, the
 		 * control pad is mostly unusable.
-	 *
-	 * If elapsed time since last event is > 1/4 second, user "stopped",
-	 * so reset acceleration. Otherwise, user is probably holding the control
-	 * pad down, so we increase acceleration, ramping up over two seconds to
-	 * a maximum speed.  The acceleration curve is #defined above.
 		 */
-	if (time_after(jiffies, ati_remote->old_jiffies + (HZ >> 2))) {
-		acc = 1;
-		ati_remote->acc_jiffies = jiffies;
-	}
-	else if (time_before(jiffies, ati_remote->acc_jiffies + (HZ >> 3)))  acc = accel[0];
-	else if (time_before(jiffies, ati_remote->acc_jiffies + (HZ >> 2)))  acc = accel[1];
-	else if (time_before(jiffies, ati_remote->acc_jiffies + (HZ >> 1)))  acc = accel[2];
-	else if (time_before(jiffies, ati_remote->acc_jiffies + HZ))         acc = accel[3];
-	else if (time_before(jiffies, ati_remote->acc_jiffies + HZ+(HZ>>1))) acc = accel[4];
-	else if (time_before(jiffies, ati_remote->acc_jiffies + (HZ << 1)))  acc = accel[5];
-	else acc = accel[6];
+		acc = ati_remote_compute_accel(ati_remote);
 
 		input_regs(dev, regs);
 		switch (ati_remote_tbl[index].kind) {
@@ -545,6 +569,7 @@ static void ati_remote_input_report(struct urb *urb, struct pt_regs *regs)
 		ati_remote->old_jiffies = jiffies;
 		ati_remote->old_data[0] = data[1];
 		ati_remote->old_data[1] = data[2];
+	}
 }
 
 /*

drivers/usb/input/hid-input.c

@@ -607,7 +607,8 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 
 	}
 
-	if (usage->hat_min < usage->hat_max || usage->hat_dir) {
+	if (usage->type == EV_ABS &&
+	    (usage->hat_min < usage->hat_max || usage->hat_dir)) {
 		int i;
 		for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
 			input_set_abs_params(input, i, -1, 1, 0, 0);

drivers/usb/input/hiddev.c

@@ -49,7 +49,7 @@ struct hiddev {
 	int open;
 	wait_queue_head_t wait;
 	struct hid_device *hid;
-	struct hiddev_list *list;
+	struct list_head list;
 };
 
 struct hiddev_list {
@@ -59,7 +59,7 @@ struct hiddev_list {
 	unsigned flags;
 	struct fasync_struct *fasync;
 	struct hiddev *hiddev;
-	struct hiddev_list *next;
+	struct list_head node;
 };
 
 static struct hiddev *hiddev_table[HIDDEV_MINORS];
@@ -73,12 +73,15 @@ static struct hiddev *hiddev_table[HIDDEV_MINORS];
 static struct hid_report *
 hiddev_lookup_report(struct hid_device *hid, struct hiddev_report_info *rinfo)
 {
-	unsigned flags = rinfo->report_id & ~HID_REPORT_ID_MASK;
+	unsigned int flags = rinfo->report_id & ~HID_REPORT_ID_MASK;
+	unsigned int rid = rinfo->report_id & HID_REPORT_ID_MASK;
 	struct hid_report_enum *report_enum;
+	struct hid_report *report;
 	struct list_head *list;
 
 	if (rinfo->report_type < HID_REPORT_TYPE_MIN ||
-	    rinfo->report_type > HID_REPORT_TYPE_MAX) return NULL;
+	    rinfo->report_type > HID_REPORT_TYPE_MAX)
+		return NULL;
 
 	report_enum = hid->report_enum +
 		(rinfo->report_type - HID_REPORT_TYPE_MIN);
@@ -88,21 +91,25 @@ hiddev_lookup_report(struct hid_device *hid, struct hiddev_report_info *rinfo)
 		break;
 
 	case HID_REPORT_ID_FIRST:
-		list = report_enum->report_list.next;
-		if (list == &report_enum->report_list)
+		if (list_empty(&report_enum->report_list))
 			return NULL;
-		rinfo->report_id = ((struct hid_report *) list)->id;
+
+		list = report_enum->report_list.next;
+		report = list_entry(list, struct hid_report, list);
+		rinfo->report_id = report->id;
 		break;
 
 	case HID_REPORT_ID_NEXT:
-		list = (struct list_head *)
-			report_enum->report_id_hash[rinfo->report_id & HID_REPORT_ID_MASK];
-		if (list == NULL)
+		report = report_enum->report_id_hash[rid];
+		if (!report)
 			return NULL;
-		list = list->next;
+
+		list = report->list.next;
 		if (list == &report_enum->report_list)
 			return NULL;
-		rinfo->report_id = ((struct hid_report *) list)->id;
+
+		report = list_entry(list, struct hid_report, list);
+		rinfo->report_id = report->id;
 		break;
 
 	default:
@@ -125,12 +132,13 @@ hiddev_lookup_usage(struct hid_device *hid, struct hiddev_usage_ref *uref)
 	struct hid_field *field;
 
 	if (uref->report_type < HID_REPORT_TYPE_MIN ||
-	    uref->report_type > HID_REPORT_TYPE_MAX) return NULL;
+	    uref->report_type > HID_REPORT_TYPE_MAX)
+		return NULL;
 
 	report_enum = hid->report_enum +
 		(uref->report_type - HID_REPORT_TYPE_MIN);
 
-	list_for_each_entry(report, &report_enum->report_list, list)
+	list_for_each_entry(report, &report_enum->report_list, list) {
 		for (i = 0; i < report->maxfield; i++) {
 			field = report->field[i];
 			for (j = 0; j < field->maxusage; j++) {
@@ -142,6 +150,7 @@ hiddev_lookup_usage(struct hid_device *hid, struct hiddev_usage_ref *uref)
 				}
 			}
 		}
+	}
 
 	return NULL;
 }
@@ -150,9 +159,9 @@ static void hiddev_send_event(struct hid_device *hid,
 			      struct hiddev_usage_ref *uref)
 {
 	struct hiddev *hiddev = hid->hiddev;
-	struct hiddev_list *list = hiddev->list;
+	struct hiddev_list *list;
 
-	while (list) {
+	list_for_each_entry(list, &hiddev->list, node) {
 		if (uref->field_index != HID_FIELD_INDEX_NONE ||
 		    (list->flags & HIDDEV_FLAG_REPORT) != 0) {
 			list->buffer[list->head] = *uref;
@@ -160,8 +169,6 @@ static void hiddev_send_event(struct hid_device *hid,
 				(HIDDEV_BUFFER_SIZE - 1);
 			kill_fasync(&list->fasync, SIGIO, POLL_IN);
 		}
-
-		list = list->next;
 	}
 
 	wake_up_interruptible(&hiddev->wait);
@@ -180,7 +187,7 @@ void hiddev_hid_event(struct hid_device *hid, struct hid_field *field,
 	uref.report_type =
 	  (type == HID_INPUT_REPORT) ? HID_REPORT_TYPE_INPUT :
 	  ((type == HID_OUTPUT_REPORT) ? HID_REPORT_TYPE_OUTPUT :
-	   ((type == HID_FEATURE_REPORT) ? HID_REPORT_TYPE_FEATURE:0));
+	   ((type == HID_FEATURE_REPORT) ? HID_REPORT_TYPE_FEATURE : 0));
 	uref.report_id = field->report->id;
 	uref.field_index = field->index;
 	uref.usage_index = (usage - field->usage);
@@ -200,7 +207,7 @@ void hiddev_report_event(struct hid_device *hid, struct hid_report *report)
 	uref.report_type =
 	  (type == HID_INPUT_REPORT) ? HID_REPORT_TYPE_INPUT :
 	  ((type == HID_OUTPUT_REPORT) ? HID_REPORT_TYPE_OUTPUT :
-	   ((type == HID_FEATURE_REPORT) ? HID_REPORT_TYPE_FEATURE:0));
+	   ((type == HID_FEATURE_REPORT) ? HID_REPORT_TYPE_FEATURE : 0));
 	uref.report_id = report->id;
 	uref.field_index = HID_FIELD_INDEX_NONE;
 
@@ -213,7 +220,9 @@ static int hiddev_fasync(int fd, struct file *file, int on)
 {
 	int retval;
 	struct hiddev_list *list = file->private_data;
+
 	retval = fasync_helper(fd, file, on, &list->fasync);
+
 	return retval < 0 ? retval : 0;
 }
 
@@ -224,14 +233,9 @@ static int hiddev_fasync(int fd, struct file *file, int on)
 static int hiddev_release(struct inode * inode, struct file * file)
 {
 	struct hiddev_list *list = file->private_data;
-	struct hiddev_list **listptr;
 
-	listptr = &list->hiddev->list;
 	hiddev_fasync(-1, file, 0);
-
-	while (*listptr && (*listptr != list))
-		listptr = &((*listptr)->next);
-	*listptr = (*listptr)->next;
+	list_del(&list->node);
 
 	if (!--list->hiddev->open) {
 		if (list->hiddev->exist)
@@ -248,7 +252,8 @@ static int hiddev_release(struct inode * inode, struct file * file)
 /*
  * open file op
  */
-static int hiddev_open(struct inode * inode, struct file * file) {
+static int hiddev_open(struct inode *inode, struct file *file)
+{
 	struct hiddev_list *list;
 
 	int i = iminor(inode) - HIDDEV_MINOR_BASE;
@@ -260,9 +265,7 @@ static int hiddev_open(struct inode * inode, struct file * file) {
 		return -ENOMEM;
 
 	list->hiddev = hiddev_table[i];
-	list->next = hiddev_table[i]->list;
-	hiddev_table[i]->list = list;
-
+	list_add_tail(&list->node, &hiddev_table[i]->list);
 	file->private_data = list;
 
 	if (!list->hiddev->open++)
@@ -362,6 +365,7 @@ static ssize_t hiddev_read(struct file * file, char __user * buffer, size_t coun
 static unsigned int hiddev_poll(struct file *file, poll_table *wait)
 {
 	struct hiddev_list *list = file->private_data;
+
 	poll_wait(file, &list->hiddev->wait, wait);
 	if (list->head != list->tail)
 		return POLLIN | POLLRDNORM;
@@ -382,7 +386,7 @@ static int hiddev_ioctl(struct inode *inode, struct file *file, unsigned int cmd
 	struct hiddev_collection_info cinfo;
 	struct hiddev_report_info rinfo;
 	struct hiddev_field_info finfo;
-	struct hiddev_usage_ref_multi *uref_multi=NULL;
+	struct hiddev_usage_ref_multi *uref_multi = NULL;
 	struct hiddev_usage_ref *uref;
 	struct hiddev_devinfo dinfo;
 	struct hid_report *report;
@@ -764,15 +768,15 @@ int hiddev_connect(struct hid_device *hid)
 	}
 
 	init_waitqueue_head(&hiddev->wait);
-
-	hiddev_table[hid->intf->minor - HIDDEV_MINOR_BASE] = hiddev;
-
+	INIT_LIST_HEAD(&hiddev->list);
 	hiddev->hid = hid;
 	hiddev->exist = 1;
 
 	hid->minor = hid->intf->minor;
 	hid->hiddev = hiddev;
 
+	hiddev_table[hid->intf->minor - HIDDEV_MINOR_BASE] = hiddev;
+
 	return 0;
 }
 

include/linux/input.h

@@ -893,7 +893,6 @@ struct input_dev {
 
 	int (*open)(struct input_dev *dev);
 	void (*close)(struct input_dev *dev);
-	int (*accept)(struct input_dev *dev, struct file *file);
 	int (*flush)(struct input_dev *dev, struct file *file);
 	int (*event)(struct input_dev *dev, unsigned int type, unsigned int code, int value);
 	int (*upload_effect)(struct input_dev *dev, struct ff_effect *effect);
@@ -961,6 +960,26 @@ struct input_dev {
 
 struct input_handle;
 
+/**
+ * struct input_handler - implements one of interfaces for input devices
+ * @private: driver-specific data
+ * @event: event handler
+ * @connect: called when attaching a handler to an input device
+ * @disconnect: disconnects a handler from input device
+ * @start: starts handler for given handle. This function is called by
+ *	input core right after connect() method and also when a process
+ *	that "grabbed" a device releases it
+ * @fops: file operations this driver implements
+ * @minor: beginning of range of 32 minors for devices this driver
+ *	can provide
+ * @name: name of the handler, to be shown in /proc/bus/input/handlers
+ * @id_table: pointer to a table of input_device_ids this driver can
+ *	handle
+ * @blacklist: prointer to a table of input_device_ids this driver should
+ *	ignore even if they match @id_table
+ * @h_list: list of input handles associated with the handler
+ * @node: for placing the driver onto input_handler_list
+ */
 struct input_handler {
 
 	void *private;
@@ -968,6 +987,7 @@ struct input_handler {
 	void (*event)(struct input_handle *handle, unsigned int type, unsigned int code, int value);
 	struct input_handle* (*connect)(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id);
 	void (*disconnect)(struct input_handle *handle);
+	void (*start)(struct input_handle *handle);
 
 	const struct file_operations *fops;
 	int minor;
@@ -1030,10 +1050,10 @@ void input_release_device(struct input_handle *);
 int input_open_device(struct input_handle *);
 void input_close_device(struct input_handle *);
 
-int input_accept_process(struct input_handle *handle, struct file *file);
 int input_flush_device(struct input_handle* handle, struct file* file);
 
 void input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value);
+void input_inject_event(struct input_handle *handle, unsigned int type, unsigned int code, int value);
 
 static inline void input_report_key(struct input_dev *dev, unsigned int code, int value)
 {