Merge branch 'from-linus' into upstream

12 files changed, 270 insertions, 136 deletions

diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index a29d5ceb00cf..4bf48188cc91 100644
--- a/drivers/input/evdev.c
+++ b/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;
 
diff --git a/drivers/input/gameport/fm801-gp.c b/drivers/input/gameport/fm801-gp.c
index 47e93daa0fa7..90de5afe03c2 100644
--- a/drivers/input/gameport/fm801-gp.c
+++ b/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;
         }
 
diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
index 36644bff379d..3f47ae55c6f3 100644
--- a/drivers/input/gameport/gameport.c
+++ b/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;
 
@@ -558,8 +565,13 @@ 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);
-        gameport->registered = 1;
+        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);
 }
@@ -704,11 +717,22 @@ static int gameport_driver_remove(struct device *dev)
 }
 
 static struct bus_type gameport_bus = {
-        .name = "gameport",
-        .probe = gameport_driver_probe,
-        .remove = gameport_driver_remove,
+        .name   = "gameport",
+        .probe  = gameport_driver_probe,
+        .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;
 }
diff --git a/drivers/input/input.c b/drivers/input/input.c
index a90486f5e491..9cb4b9a54f01 100644
--- a/drivers/input/input.c
+++ b/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();
 }
diff --git a/drivers/input/joystick/iforce/iforce-main.c b/drivers/input/joystick/iforce/iforce-main.c
index 6d99e3c37884..b4914e7231f8 100644
--- a/drivers/input/joystick/iforce/iforce-main.c
+++ b/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;
diff --git a/drivers/input/joystick/spaceball.c b/drivers/input/joystick/spaceball.c
index 75eb5ca59992..7a19ee052972 100644
--- a/drivers/input/joystick/spaceball.c
+++ b/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
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index ce1f10e8984b..6bfa0cf4b1d2 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -482,13 +482,7 @@ out:
         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,
@@ -496,41 +490,64 @@ 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;
+        int i = 0, j = 0;
+
+        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];
-        int i, j;
 
-        mutex_lock(&atkbd->event_mutex);
+        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);
+        if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS))
+                return -1;
 
-        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 (atkbd->extra) {
-                        param[0] = 0;
-                        param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0)
-                                 | (test_bit(LED_SLEEP,   dev->led) ? 0x02 : 0)
-                                 | (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 (atkbd->extra) {
+                param[0] = 0;
+                param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0)
+                         | (test_bit(LED_SLEEP,   dev->led) ? 0x02 : 0)
+                         | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0)
+                         | (test_bit(LED_MISC,    dev->led) ? 0x10 : 0)
+                         | (test_bit(LED_MUTE,    dev->led) ? 0x20 : 0);
+                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);
diff --git a/drivers/input/misc/wistron_btns.c b/drivers/input/misc/wistron_btns.c
index ccf0faeee5c1..a8efc1af36cb 100644
--- a/drivers/input/misc/wistron_btns.c
+++ b/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",
diff --git a/drivers/input/mouse/logips2pp.c b/drivers/input/mouse/logips2pp.c
index 2f0d28840810..54b696cfe1e3 100644
--- a/drivers/input/mouse/logips2pp.c
+++ b/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 },
diff --git a/drivers/input/mouse/trackpoint.c b/drivers/input/mouse/trackpoint.c
index 6d9ec9ab1b90..ae5871a0e060 100644
--- a/drivers/input/mouse/trackpoint.c
+++ b/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);
diff --git a/drivers/input/serio/libps2.c b/drivers/input/serio/libps2.c
index 61a6f977846f..ed202f2f251a 100644
--- a/drivers/input/serio/libps2.c
+++ b/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);
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index 6521034bc933..3e76ad71c9a0 100644
--- a/drivers/input/serio/serio.c
+++ b/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);
-        serio->registered = 1;
+        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;
 }